3 * Copyright (c) 2009-2010, Atheros Communications
4 * Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
14 #include "common/ieee802_11_common.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/wpa_ctrl.h"
17 #include "wps/wps_i.h"
19 #include "ap/hostapd.h"
20 #include "ap/ap_config.h"
21 #include "ap/sta_info.h"
22 #include "ap/ap_drv_ops.h"
23 #include "ap/wps_hostapd.h"
24 #include "ap/p2p_hostapd.h"
26 #include "eapol_supp/eapol_supp_sm.h"
27 #include "rsn_supp/wpa.h"
28 #include "wpa_supplicant_i.h"
31 #include "config_ssid.h"
36 #include "offchannel.h"
37 #include "wps_supplicant.h"
38 #include "p2p_supplicant.h"
39 #include "wifi_display.h"
43 * How many times to try to scan to find the GO before giving up on join
46 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
48 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
51 * Defines time interval in seconds when a GO needs to evacuate a frequency that
52 * it is currently using, but is no longer valid for P2P use cases.
54 #define P2P_GO_FREQ_CHANGE_TIME 5
56 #ifndef P2P_MAX_CLIENT_IDLE
58 * How many seconds to try to reconnect to the GO when connection in P2P client
61 #define P2P_MAX_CLIENT_IDLE 10
62 #endif /* P2P_MAX_CLIENT_IDLE */
64 #ifndef P2P_MAX_INITIAL_CONN_WAIT
66 * How many seconds to wait for initial 4-way handshake to get completed after
67 * WPS provisioning step or after the re-invocation of a persistent group on a
70 #define P2P_MAX_INITIAL_CONN_WAIT 10
71 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
73 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
75 * How many seconds to wait for initial 4-way handshake to get completed after
76 * WPS provisioning step on the GO. This controls the extra time the P2P
77 * operation is considered to be in progress (e.g., to delay other scans) after
78 * WPS provisioning has been completed on the GO during group formation.
80 #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
81 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
83 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
85 * How many seconds to wait for initial 4-way handshake to get completed after
86 * re-invocation of a persistent group on the GO when the client is expected
87 * to connect automatically (no user interaction).
89 #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
90 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
92 #define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
95 * How many seconds to wait to re-attempt to move GOs, in case previous attempt
98 #define P2P_RECONSIDER_GO_MOVE_DELAY 30
100 enum p2p_group_removal_reason {
101 P2P_GROUP_REMOVAL_UNKNOWN,
102 P2P_GROUP_REMOVAL_SILENT,
103 P2P_GROUP_REMOVAL_FORMATION_FAILED,
104 P2P_GROUP_REMOVAL_REQUESTED,
105 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
106 P2P_GROUP_REMOVAL_UNAVAILABLE,
107 P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
108 P2P_GROUP_REMOVAL_PSK_FAILURE,
109 P2P_GROUP_REMOVAL_FREQ_CONFLICT,
110 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
114 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
115 static struct wpa_supplicant *
116 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
118 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
119 const u8 *ssid, size_t ssid_len);
120 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
121 const u8 *ssid, size_t ssid_len);
122 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
123 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
124 const u8 *dev_addr, enum p2p_wps_method wps_method,
125 int auto_join, int freq,
126 const u8 *ssid, size_t ssid_len);
127 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
128 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
129 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
130 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
131 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
133 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
134 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
136 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
137 static void wpas_stop_listen(void *ctx);
138 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
139 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
140 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
141 enum wpa_driver_if_type type);
142 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
143 int already_deleted);
144 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
145 struct wpa_used_freq_data *freqs,
147 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx);
148 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq);
150 wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
151 struct wpa_used_freq_data *freqs, unsigned int num,
152 enum wpas_p2p_channel_update_trig trig);
153 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx);
157 * Get the number of concurrent channels that the HW can operate, but that are
158 * currently not in use by any of the wpa_supplicant interfaces.
160 static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
165 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
169 num = get_shared_radio_freqs(wpa_s, freqs,
170 wpa_s->num_multichan_concurrent);
173 unused = wpa_s->num_multichan_concurrent - num;
174 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
180 * Get the frequencies that are currently in use by one or more of the virtual
181 * interfaces, and that are also valid for P2P operation.
184 wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
185 struct wpa_used_freq_data *p2p_freqs,
188 struct wpa_used_freq_data *freqs;
189 unsigned int num, i, j;
191 freqs = os_calloc(wpa_s->num_multichan_concurrent,
192 sizeof(struct wpa_used_freq_data));
196 num = get_shared_radio_freqs_data(wpa_s, freqs,
197 wpa_s->num_multichan_concurrent);
199 os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
201 for (i = 0, j = 0; i < num && j < len; i++) {
202 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
203 p2p_freqs[j++] = freqs[i];
208 dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
214 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
217 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
220 /* Use the wpa_s used to control the P2P Device operation */
221 wpa_s = wpa_s->global->p2p_init_wpa_s;
223 if (wpa_s->conf->p2p_ignore_shared_freq &&
224 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
225 wpas_p2p_num_unused_channels(wpa_s) > 0) {
226 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
230 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
234 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
235 struct wpa_scan_results *scan_res)
239 if (wpa_s->p2p_scan_work) {
240 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
241 wpa_s->p2p_scan_work = NULL;
242 radio_work_done(work);
245 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
248 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
249 (int) scan_res->num);
251 for (i = 0; i < scan_res->num; i++) {
252 struct wpa_scan_res *bss = scan_res->res[i];
253 struct os_reltime time_tmp_age, entry_ts;
257 time_tmp_age.sec = bss->age / 1000;
258 time_tmp_age.usec = (bss->age % 1000) * 1000;
259 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
261 ies = (const u8 *) (bss + 1);
262 ies_len = bss->ie_len;
263 if (bss->beacon_ie_len > 0 &&
264 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
265 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
266 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
267 MACSTR, MAC2STR(bss->bssid));
269 ies_len = bss->beacon_ie_len;
273 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
274 bss->freq, &entry_ts, bss->level,
279 p2p_scan_res_handled(wpa_s->global->p2p);
283 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
285 struct wpa_supplicant *wpa_s = work->wpa_s;
286 struct wpa_driver_scan_params *params = work->ctx;
290 if (!work->started) {
291 wpa_scan_free_params(params);
295 wpa_s->p2p_scan_work = NULL;
299 ret = wpa_drv_scan(wpa_s, params);
300 wpa_scan_free_params(params);
303 radio_work_done(work);
304 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
308 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
309 os_get_reltime(&wpa_s->scan_trigger_time);
310 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
311 wpa_s->own_scan_requested = 1;
312 wpa_s->p2p_scan_work = work;
316 static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
319 if (wpa_s->global->p2p_24ghz_social_channels &&
320 (freq == 2412 || freq == 2437 || freq == 2462)) {
322 * Search all social channels regardless of whether these have
323 * been disabled for P2P operating channel use to avoid missing
328 return p2p_supported_freq(wpa_s->global->p2p, freq);
332 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
333 unsigned int num_req_dev_types,
334 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
336 struct wpa_supplicant *wpa_s = ctx;
337 struct wpa_driver_scan_params *params = NULL;
338 struct wpabuf *wps_ie, *ies;
339 unsigned int num_channels = 0;
340 int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
344 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
347 if (wpa_s->p2p_scan_work) {
348 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
352 params = os_zalloc(sizeof(*params));
356 /* P2P Wildcard SSID */
357 params->num_ssids = 1;
358 n = os_malloc(P2P_WILDCARD_SSID_LEN);
361 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
362 params->ssids[0].ssid = n;
363 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
365 wpa_s->wps->dev.p2p = 1;
366 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
367 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
368 num_req_dev_types, req_dev_types);
372 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
373 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
378 wpabuf_put_buf(ies, wps_ie);
381 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
383 params->p2p_probe = 1;
384 n = os_malloc(wpabuf_len(ies));
389 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
390 params->extra_ies = n;
391 params->extra_ies_len = wpabuf_len(ies);
395 case P2P_SCAN_SOCIAL:
396 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
398 if (params->freqs == NULL)
400 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
401 if (wpas_p2p_search_social_channel(
402 wpa_s, social_channels_freq[i]))
403 params->freqs[num_channels++] =
404 social_channels_freq[i];
406 params->freqs[num_channels++] = 0;
410 case P2P_SCAN_SPECIFIC:
411 params->freqs = os_calloc(2, sizeof(int));
412 if (params->freqs == NULL)
414 params->freqs[0] = freq;
415 params->freqs[1] = 0;
417 case P2P_SCAN_SOCIAL_PLUS_ONE:
418 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
420 if (params->freqs == NULL)
422 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
423 if (wpas_p2p_search_social_channel(
424 wpa_s, social_channels_freq[i]))
425 params->freqs[num_channels++] =
426 social_channels_freq[i];
428 if (p2p_supported_freq(wpa_s->global->p2p, freq))
429 params->freqs[num_channels++] = freq;
430 params->freqs[num_channels++] = 0;
434 radio_remove_works(wpa_s, "p2p-scan", 0);
435 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
441 wpa_scan_free_params(params);
446 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
448 switch (p2p_group_interface) {
449 case P2P_GROUP_INTERFACE_PENDING:
450 return WPA_IF_P2P_GROUP;
451 case P2P_GROUP_INTERFACE_GO:
452 return WPA_IF_P2P_GO;
453 case P2P_GROUP_INTERFACE_CLIENT:
454 return WPA_IF_P2P_CLIENT;
457 return WPA_IF_P2P_GROUP;
461 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
463 size_t ssid_len, int *go)
467 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
468 for (s = wpa_s->conf->ssid; s; s = s->next) {
469 if (s->disabled != 0 || !s->p2p_group ||
470 s->ssid_len != ssid_len ||
471 os_memcmp(ssid, s->ssid, ssid_len) != 0)
473 if (s->mode == WPAS_MODE_P2P_GO &&
474 s != wpa_s->current_ssid)
477 *go = s->mode == WPAS_MODE_P2P_GO;
486 static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
488 struct wpa_supplicant *wpa_s = eloop_ctx;
489 wpa_printf(MSG_DEBUG,
490 "P2P: Complete previously requested removal of %s",
492 wpas_p2p_disconnect(wpa_s);
496 static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
497 struct wpa_supplicant *calling_wpa_s)
499 if (calling_wpa_s == wpa_s && wpa_s &&
500 wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
502 * The calling wpa_s instance is going to be removed. Do that
503 * from an eloop callback to keep the instance available until
504 * the caller has returned. This my be needed, e.g., to provide
505 * control interface responses on the per-interface socket.
507 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
513 return wpas_p2p_disconnect(wpa_s);
517 /* Determine total number of clients in active groups where we are the GO */
518 static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
520 unsigned int count = 0;
523 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
524 for (s = wpa_s->conf->ssid; s; s = s->next) {
525 wpa_printf(MSG_DEBUG,
526 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
527 wpa_s, s, s->disabled, s->p2p_group,
529 if (!s->disabled && s->p2p_group &&
530 s->mode == WPAS_MODE_P2P_GO) {
531 count += p2p_get_group_num_members(
541 /* Find an interface for a P2P group where we are the GO */
542 static struct wpa_supplicant *
543 wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
545 struct wpa_supplicant *save = NULL;
551 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
552 for (s = wpa_s->conf->ssid; s; s = s->next) {
553 if (s->disabled || !s->p2p_group ||
554 s->mode != WPAS_MODE_P2P_GO)
557 /* Prefer a group with connected clients */
558 if (p2p_get_group_num_members(wpa_s->p2p_group))
564 /* No group with connected clients, so pick the one without (if any) */
569 /* Find an active P2P group where we are the GO */
570 static struct wpa_ssid * wpas_p2p_group_go_ssid(struct wpa_supplicant *wpa_s,
573 struct wpa_ssid *s, *empty = NULL;
578 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
579 for (s = wpa_s->conf->ssid; s; s = s->next) {
580 if (s->disabled || !s->p2p_group ||
581 s->mode != WPAS_MODE_P2P_GO)
584 os_memcpy(bssid, wpa_s->own_addr, ETH_ALEN);
585 if (p2p_get_group_num_members(wpa_s->p2p_group))
595 /* Find a persistent group where we are the GO */
596 static struct wpa_ssid *
597 wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
601 for (s = wpa_s->conf->ssid; s; s = s->next) {
602 if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
610 static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role)
612 struct wpa_supplicant *wpa_s = ctx, *tmp_wpa_s;
614 u8 conncap = P2PS_SETUP_NONE;
615 unsigned int owned_members = 0;
616 unsigned int owner = 0;
617 unsigned int client = 0;
618 struct wpa_supplicant *go_wpa_s;
619 struct wpa_ssid *persistent_go;
620 int p2p_no_group_iface;
622 wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
625 * For non-concurrent capable devices:
626 * If persistent_go, then no new.
627 * If GO, then no client.
628 * If client, then no GO.
630 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
631 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
632 p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
634 wpa_printf(MSG_DEBUG, "P2P: GO(iface)=%p persistent(ssid)=%p",
635 go_wpa_s, persistent_go);
637 for (tmp_wpa_s = wpa_s->global->ifaces; tmp_wpa_s;
638 tmp_wpa_s = tmp_wpa_s->next) {
639 for (s = tmp_wpa_s->conf->ssid; s; s = s->next) {
640 wpa_printf(MSG_DEBUG,
641 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
642 tmp_wpa_s, s, s->disabled,
643 s->p2p_group, s->mode);
644 if (!s->disabled && s->p2p_group) {
645 if (s->mode == WPAS_MODE_P2P_GO) {
647 p2p_get_group_num_members(
648 tmp_wpa_s->p2p_group);
656 /* If not concurrent, restrict our choices */
657 if (p2p_no_group_iface) {
658 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
661 return P2PS_SETUP_NONE;
664 if (role == P2PS_SETUP_CLIENT ||
665 incoming == P2PS_SETUP_GROUP_OWNER ||
666 p2p_client_limit_reached(go_wpa_s->p2p_group))
667 return P2PS_SETUP_NONE;
669 return P2PS_SETUP_GROUP_OWNER;
673 if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
675 return P2PS_SETUP_GROUP_OWNER |
677 if (incoming == P2PS_SETUP_NEW) {
680 if (os_get_random(&r, sizeof(r)) < 0 ||
682 return P2PS_SETUP_CLIENT;
683 return P2PS_SETUP_GROUP_OWNER;
689 /* If a required role has been specified, handle it here */
690 if (role && role != P2PS_SETUP_NEW) {
692 case P2PS_SETUP_NONE:
694 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
695 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
699 case P2PS_SETUP_GROUP_OWNER:
701 * Must be a complimentary role - cannot be a client to
702 * more than one peer.
704 if (incoming == role || client)
705 return P2PS_SETUP_NONE;
707 return P2PS_SETUP_CLIENT;
709 case P2PS_SETUP_CLIENT:
710 /* Must be a complimentary role */
711 if (incoming != role) {
712 conncap = P2PS_SETUP_GROUP_OWNER;
717 return P2PS_SETUP_NONE;
722 * For now, we only will support ownership of one group, and being a
723 * client of one group. Therefore, if we have either an existing GO
724 * group, or an existing client group, we will not do a new GO
725 * negotiation, but rather try to re-use the existing groups.
728 case P2PS_SETUP_NONE:
731 conncap = P2PS_SETUP_GROUP_OWNER;
732 else if (!owned_members)
733 conncap = P2PS_SETUP_NEW;
734 else if (incoming == P2PS_SETUP_NONE)
735 conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
737 conncap = P2PS_SETUP_CLIENT;
740 case P2PS_SETUP_CLIENT:
741 conncap = P2PS_SETUP_GROUP_OWNER;
744 case P2PS_SETUP_GROUP_OWNER:
746 conncap = P2PS_SETUP_CLIENT;
749 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
750 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
752 conncap = P2PS_SETUP_GROUP_OWNER;
756 if (os_get_random(&r, sizeof(r)) < 0 ||
758 conncap = P2PS_SETUP_CLIENT;
760 conncap = P2PS_SETUP_GROUP_OWNER;
765 return P2PS_SETUP_NONE;
769 if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
770 (!incoming && (conncap & P2PS_SETUP_NEW))) {
771 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
772 conncap &= ~P2PS_SETUP_GROUP_OWNER;
773 wpa_printf(MSG_DEBUG, "P2P: GOs:%d members:%d conncap:%d",
774 owner, owned_members, conncap);
776 s = wpas_p2p_get_persistent_go(wpa_s);
778 if (!s && !owner && p2p_no_group_iface) {
779 p2p_set_intended_addr(wpa_s->global->p2p,
781 } else if (!s && !owner) {
782 if (wpas_p2p_add_group_interface(wpa_s,
783 WPA_IF_P2P_GO) < 0) {
784 wpa_printf(MSG_ERROR,
785 "P2P: Failed to allocate a new interface for the group");
786 return P2PS_SETUP_NONE;
788 wpa_s->global->pending_group_iface_for_p2ps = 1;
789 p2p_set_intended_addr(wpa_s->global->p2p,
790 wpa_s->pending_interface_addr);
798 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
799 enum p2p_group_removal_reason removal_reason)
801 struct wpa_ssid *ssid;
805 ssid = wpa_s->current_ssid;
808 * The current SSID was not known, but there may still be a
809 * pending P2P group interface waiting for provisioning or a
810 * P2P group that is trying to reconnect.
812 ssid = wpa_s->conf->ssid;
814 if (ssid->p2p_group && ssid->disabled != 2)
819 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
821 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
826 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
828 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
829 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
830 wpa_s->reassociate = 0;
831 wpa_s->disconnected = 1;
836 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
837 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
839 if (os_strcmp(gtype, "client") == 0) {
840 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
841 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
843 wpa_printf(MSG_DEBUG,
844 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
845 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
846 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
851 if (wpa_s->cross_connect_in_use) {
852 wpa_s->cross_connect_in_use = 0;
853 wpa_msg_global(wpa_s->parent, MSG_INFO,
854 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
855 wpa_s->ifname, wpa_s->cross_connect_uplink);
857 switch (removal_reason) {
858 case P2P_GROUP_REMOVAL_REQUESTED:
859 reason = " reason=REQUESTED";
861 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
862 reason = " reason=FORMATION_FAILED";
864 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
865 reason = " reason=IDLE";
867 case P2P_GROUP_REMOVAL_UNAVAILABLE:
868 reason = " reason=UNAVAILABLE";
870 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
871 reason = " reason=GO_ENDING_SESSION";
873 case P2P_GROUP_REMOVAL_PSK_FAILURE:
874 reason = " reason=PSK_FAILURE";
876 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
877 reason = " reason=FREQ_CONFLICT";
883 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
884 wpa_msg_global(wpa_s->parent, MSG_INFO,
885 P2P_EVENT_GROUP_REMOVED "%s %s%s",
886 wpa_s->ifname, gtype, reason);
889 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
890 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
891 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
892 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
893 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
894 wpa_s->parent, NULL) > 0) {
895 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
897 wpa_s->p2p_in_provisioning = 0;
898 wpas_p2p_group_formation_failed(wpa_s, 1);
901 wpa_s->p2p_in_invitation = 0;
902 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
903 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
906 * Make sure wait for the first client does not remain active after the
907 * group has been removed.
909 wpa_s->global->p2p_go_wait_client.sec = 0;
911 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
912 struct wpa_global *global;
914 enum wpa_driver_if_type type;
915 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
917 global = wpa_s->global;
918 ifname = os_strdup(wpa_s->ifname);
919 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
920 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
921 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
922 wpa_s = global->ifaces;
924 wpa_drv_if_remove(wpa_s, type, ifname);
929 if (!wpa_s->p2p_go_group_formation_completed) {
930 wpa_s->global->p2p_group_formation = NULL;
931 wpa_s->p2p_in_provisioning = 0;
934 wpa_s->show_group_started = 0;
935 os_free(wpa_s->go_params);
936 wpa_s->go_params = NULL;
938 os_free(wpa_s->p2p_group_common_freqs);
939 wpa_s->p2p_group_common_freqs = NULL;
940 wpa_s->p2p_group_common_freqs_num = 0;
942 wpa_s->waiting_presence_resp = 0;
944 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
945 if (ssid && (ssid->p2p_group ||
946 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
947 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
949 if (ssid == wpa_s->current_ssid) {
950 wpa_sm_set_config(wpa_s->wpa, NULL);
951 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
952 wpa_s->current_ssid = NULL;
955 * Networks objects created during any P2P activities are not
956 * exposed out as they might/will confuse certain non-P2P aware
957 * applications since these network objects won't behave like
960 * Likewise, we don't send out network removed signals for such
963 wpa_config_remove_network(wpa_s->conf, id);
964 wpa_supplicant_clear_status(wpa_s);
965 wpa_supplicant_cancel_sched_scan(wpa_s);
967 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
971 wpa_supplicant_ap_deinit(wpa_s);
973 wpa_drv_deinit_p2p_cli(wpa_s);
975 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
981 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
983 const u8 *ssid, size_t ssid_len)
991 if (wpa_s->go_params)
992 bssid = wpa_s->go_params->peer_interface_addr;
994 bssid = wpa_s->bssid;
996 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
997 if (bss == NULL && wpa_s->go_params &&
998 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
999 bss = wpa_bss_get_p2p_dev_addr(
1000 wpa_s, wpa_s->go_params->peer_device_addr);
1002 u8 iface_addr[ETH_ALEN];
1003 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
1005 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
1008 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1009 "group is persistent - BSS " MACSTR " not found",
1014 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1016 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
1017 P2P_IE_VENDOR_TYPE);
1019 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1020 "group is persistent - BSS " MACSTR
1021 " did not include P2P IE", MAC2STR(bssid));
1022 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
1023 (u8 *) (bss + 1), bss->ie_len);
1024 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
1025 ((u8 *) bss + 1) + bss->ie_len,
1026 bss->beacon_ie_len);
1030 group_capab = p2p_get_group_capab(p2p);
1031 addr = p2p_get_go_dev_addr(p2p);
1032 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
1033 "group_capab=0x%x", group_capab);
1035 os_memcpy(go_dev_addr, addr, ETH_ALEN);
1036 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1039 os_memset(go_dev_addr, 0, ETH_ALEN);
1042 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1043 "go_dev_addr=" MACSTR,
1044 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1046 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
1050 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1051 struct wpa_ssid *ssid,
1052 const u8 *go_dev_addr)
1057 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1058 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1059 for (s = wpa_s->conf->ssid; s; s = s->next) {
1060 if (s->disabled == 2 &&
1061 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1062 s->ssid_len == ssid->ssid_len &&
1063 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1068 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1070 if (ssid->passphrase && !s->passphrase)
1072 else if (ssid->passphrase && s->passphrase &&
1073 os_strcmp(ssid->passphrase, s->passphrase) != 0)
1076 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1079 s = wpa_config_add_network(wpa_s->conf);
1084 * Instead of network_added we emit persistent_group_added
1085 * notification. Also to keep the defense checks in
1086 * persistent_group obj registration method, we set the
1087 * relevant flags in s to designate it as a persistent group.
1090 s->p2p_persistent_group = 1;
1091 wpas_notify_persistent_group_added(wpa_s, s);
1092 wpa_config_set_network_defaults(s);
1096 s->p2p_persistent_group = 1;
1099 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1100 s->mode = ssid->mode;
1101 s->auth_alg = WPA_AUTH_ALG_OPEN;
1102 s->key_mgmt = WPA_KEY_MGMT_PSK;
1103 s->proto = WPA_PROTO_RSN;
1104 s->pairwise_cipher = WPA_CIPHER_CCMP;
1106 if (ssid->passphrase) {
1107 os_free(s->passphrase);
1108 s->passphrase = os_strdup(ssid->passphrase);
1110 if (ssid->psk_set) {
1112 os_memcpy(s->psk, ssid->psk, 32);
1114 if (s->passphrase && !s->psk_set)
1115 wpa_config_update_psk(s);
1116 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1118 s->ssid = os_malloc(ssid->ssid_len);
1121 s->ssid_len = ssid->ssid_len;
1122 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1124 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1125 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1126 wpa_s->global->add_psk = NULL;
1130 if (changed && wpa_s->conf->update_config &&
1131 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1132 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1139 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1142 struct wpa_ssid *ssid, *s;
1146 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
1148 ssid = wpa_s->current_ssid;
1149 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1150 !ssid->p2p_persistent_group)
1153 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
1154 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1157 if (s->ssid_len == ssid->ssid_len &&
1158 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1165 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1166 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1170 if (i == s->num_p2p_clients - 1)
1171 return; /* already the most recent entry */
1173 /* move the entry to mark it most recent */
1174 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1175 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1176 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1177 os_memcpy(s->p2p_client_list +
1178 (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1180 os_memset(s->p2p_client_list +
1181 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1187 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1188 n = os_realloc_array(s->p2p_client_list,
1189 s->num_p2p_clients + 1, 2 * ETH_ALEN);
1192 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1194 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1196 s->p2p_client_list = n;
1197 s->num_p2p_clients++;
1198 } else if (!found && s->p2p_client_list) {
1199 /* Not enough room for an additional entry - drop the oldest
1201 os_memmove(s->p2p_client_list,
1202 s->p2p_client_list + 2 * ETH_ALEN,
1203 (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1204 os_memcpy(s->p2p_client_list +
1205 (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1207 os_memset(s->p2p_client_list +
1208 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1212 if (p2p_wpa_s->conf->update_config &&
1213 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
1214 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1218 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1219 int go, struct wpa_ssid *ssid, int freq,
1220 const u8 *psk, const char *passphrase,
1221 const u8 *go_dev_addr, int persistent,
1224 const char *ssid_txt;
1228 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1233 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1237 if (passphrase && passphrase[0] == '\0')
1241 * Include PSK/passphrase only in the control interface message and
1242 * leave it out from the debug log entry.
1244 wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
1245 P2P_EVENT_GROUP_STARTED
1246 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1248 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1249 psk ? " psk=" : "", psk_txt,
1250 passphrase ? " passphrase=\"" : "",
1251 passphrase ? passphrase : "",
1252 passphrase ? "\"" : "",
1253 MAC2STR(go_dev_addr),
1254 persistent ? " [PERSISTENT]" : "", extra);
1255 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1256 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1257 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1258 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1263 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1264 int success, int already_deleted)
1266 struct wpa_ssid *ssid;
1269 u8 go_dev_addr[ETH_ALEN];
1270 int network_id = -1;
1273 * This callback is likely called for the main interface. Update wpa_s
1274 * to use the group interface if a new interface was created for the
1277 if (wpa_s->global->p2p_group_formation)
1278 wpa_s = wpa_s->global->p2p_group_formation;
1279 if (wpa_s->p2p_go_group_formation_completed) {
1280 wpa_s->global->p2p_group_formation = NULL;
1281 wpa_s->p2p_in_provisioning = 0;
1283 wpa_s->p2p_in_invitation = 0;
1284 wpa_s->group_formation_reported = 1;
1287 wpa_msg_global(wpa_s->parent, MSG_INFO,
1288 P2P_EVENT_GROUP_FORMATION_FAILURE);
1289 wpas_notify_p2p_group_formation_failure(wpa_s, "");
1290 if (already_deleted)
1292 wpas_p2p_group_delete(wpa_s,
1293 P2P_GROUP_REMOVAL_FORMATION_FAILED);
1297 wpa_msg_global(wpa_s->parent, MSG_INFO,
1298 P2P_EVENT_GROUP_FORMATION_SUCCESS);
1300 ssid = wpa_s->current_ssid;
1301 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1302 ssid->mode = WPAS_MODE_P2P_GO;
1303 p2p_group_notif_formation_done(wpa_s->p2p_group);
1304 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1309 client = ssid->mode == WPAS_MODE_INFRA;
1310 if (ssid->mode == WPAS_MODE_P2P_GO) {
1311 persistent = ssid->p2p_persistent_group;
1312 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
1315 persistent = wpas_p2p_persistent_group(wpa_s,
1320 client = wpa_s->p2p_group_interface ==
1321 P2P_GROUP_INTERFACE_CLIENT;
1322 os_memset(go_dev_addr, 0, ETH_ALEN);
1325 wpa_s->show_group_started = 0;
1328 * Indicate event only after successfully completed 4-way
1329 * handshake, i.e., when the interface is ready for data
1332 wpa_s->show_group_started = 1;
1334 wpas_p2p_group_started(wpa_s, 1, ssid,
1335 ssid ? ssid->frequency : 0,
1336 ssid && ssid->passphrase == NULL &&
1337 ssid->psk_set ? ssid->psk : NULL,
1338 ssid ? ssid->passphrase : NULL,
1339 go_dev_addr, persistent, "");
1340 wpas_p2p_cross_connect_setup(wpa_s);
1341 wpas_p2p_set_group_idle_timeout(wpa_s);
1345 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
1348 os_free(wpa_s->global->add_psk);
1349 wpa_s->global->add_psk = NULL;
1351 if (network_id < 0 && ssid)
1352 network_id = ssid->id;
1354 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1355 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1360 struct send_action_work {
1366 unsigned int wait_time;
1371 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1374 struct wpa_supplicant *wpa_s = eloop_ctx;
1376 if (!wpa_s->p2p_send_action_work)
1379 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1380 os_free(wpa_s->p2p_send_action_work->ctx);
1381 radio_work_done(wpa_s->p2p_send_action_work);
1382 wpa_s->p2p_send_action_work = NULL;
1386 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1388 if (wpa_s->p2p_send_action_work) {
1389 struct send_action_work *awork;
1390 awork = wpa_s->p2p_send_action_work->ctx;
1391 if (awork->wait_time == 0) {
1393 radio_work_done(wpa_s->p2p_send_action_work);
1394 wpa_s->p2p_send_action_work = NULL;
1397 * In theory, this should not be needed, but number of
1398 * places in the P2P code is still using non-zero wait
1399 * time for the last Action frame in the sequence and
1400 * some of these do not call send_action_done().
1402 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1404 eloop_register_timeout(
1405 0, awork->wait_time * 1000,
1406 wpas_p2p_send_action_work_timeout,
1413 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1415 const u8 *dst, const u8 *src,
1417 const u8 *data, size_t data_len,
1418 enum offchannel_send_action_result
1421 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1423 wpas_p2p_action_tx_clear(wpa_s);
1425 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1429 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1430 res = P2P_SEND_ACTION_SUCCESS;
1432 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1433 res = P2P_SEND_ACTION_NO_ACK;
1435 case OFFCHANNEL_SEND_ACTION_FAILED:
1436 res = P2P_SEND_ACTION_FAILED;
1440 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1442 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1443 wpa_s->pending_pd_before_join &&
1444 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1445 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1446 wpa_s->p2p_fallback_to_go_neg) {
1447 wpa_s->pending_pd_before_join = 0;
1448 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1449 "during p2p_connect-auto");
1450 wpa_msg_global(wpa_s->parent, MSG_INFO,
1451 P2P_EVENT_FALLBACK_TO_GO_NEG
1452 "reason=no-ACK-to-PD-Req");
1453 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1459 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1461 struct wpa_supplicant *wpa_s = work->wpa_s;
1462 struct send_action_work *awork = work->ctx;
1465 if (work->started) {
1466 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1468 wpa_s->p2p_send_action_work = NULL;
1469 offchannel_send_action_done(wpa_s);
1475 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1476 awork->bssid, awork->buf, awork->len,
1478 wpas_p2p_send_action_tx_status, 1) < 0) {
1480 radio_work_done(work);
1483 wpa_s->p2p_send_action_work = work;
1487 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1488 unsigned int freq, const u8 *dst,
1489 const u8 *src, const u8 *bssid, const u8 *buf,
1490 size_t len, unsigned int wait_time)
1492 struct send_action_work *awork;
1494 if (wpa_s->p2p_send_action_work) {
1495 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1499 awork = os_zalloc(sizeof(*awork) + len);
1504 os_memcpy(awork->dst, dst, ETH_ALEN);
1505 os_memcpy(awork->src, src, ETH_ALEN);
1506 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1508 awork->wait_time = wait_time;
1509 os_memcpy(awork->buf, buf, len);
1511 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1512 wpas_send_action_cb, awork) < 0) {
1521 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1522 const u8 *src, const u8 *bssid, const u8 *buf,
1523 size_t len, unsigned int wait_time)
1525 struct wpa_supplicant *wpa_s = ctx;
1526 int listen_freq = -1, send_freq = -1;
1528 if (wpa_s->p2p_listen_work)
1529 listen_freq = wpa_s->p2p_listen_work->freq;
1530 if (wpa_s->p2p_send_action_work)
1531 send_freq = wpa_s->p2p_send_action_work->freq;
1532 if (listen_freq != (int) freq && send_freq != (int) freq) {
1533 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1534 listen_freq, send_freq);
1535 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1539 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1540 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1542 wpas_p2p_send_action_tx_status, 1);
1546 static void wpas_send_action_done(void *ctx)
1548 struct wpa_supplicant *wpa_s = ctx;
1550 if (wpa_s->p2p_send_action_work) {
1551 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1553 os_free(wpa_s->p2p_send_action_work->ctx);
1554 radio_work_done(wpa_s->p2p_send_action_work);
1555 wpa_s->p2p_send_action_work = NULL;
1558 offchannel_send_action_done(wpa_s);
1562 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1563 struct p2p_go_neg_results *params)
1565 if (wpa_s->go_params == NULL) {
1566 wpa_s->go_params = os_malloc(sizeof(*params));
1567 if (wpa_s->go_params == NULL)
1570 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1575 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1576 struct p2p_go_neg_results *res)
1578 wpa_s->group_formation_reported = 0;
1579 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1580 " dev_addr " MACSTR " wps_method %d",
1581 MAC2STR(res->peer_interface_addr),
1582 MAC2STR(res->peer_device_addr), res->wps_method);
1583 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1584 res->ssid, res->ssid_len);
1585 wpa_supplicant_ap_deinit(wpa_s);
1586 wpas_copy_go_neg_results(wpa_s, res);
1587 if (res->wps_method == WPS_PBC) {
1588 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1589 #ifdef CONFIG_WPS_NFC
1590 } else if (res->wps_method == WPS_NFC) {
1591 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1592 res->peer_interface_addr,
1593 wpa_s->parent->p2p_oob_dev_pw,
1594 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1595 wpa_s->parent->p2p_oob_dev_pw_id ==
1596 DEV_PW_NFC_CONNECTION_HANDOVER ?
1597 wpa_s->parent->p2p_peer_oob_pubkey_hash :
1600 #endif /* CONFIG_WPS_NFC */
1602 u16 dev_pw_id = DEV_PW_DEFAULT;
1603 if (wpa_s->p2p_wps_method == WPS_P2PS)
1604 dev_pw_id = DEV_PW_P2PS_DEFAULT;
1605 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1606 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1607 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1608 wpa_s->p2p_pin, 1, dev_pw_id);
1613 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1614 struct wpa_ssid *ssid)
1616 struct wpa_ssid *persistent;
1617 struct psk_list_entry *psk;
1618 struct hostapd_data *hapd;
1620 if (!wpa_s->ap_iface)
1623 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1625 if (persistent == NULL)
1628 hapd = wpa_s->ap_iface->bss[0];
1630 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1632 struct hostapd_wpa_psk *hpsk;
1634 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1636 MAC2STR(psk->addr), psk->p2p);
1637 hpsk = os_zalloc(sizeof(*hpsk));
1640 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1642 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1644 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1645 hpsk->next = hapd->conf->ssid.wpa_psk;
1646 hapd->conf->ssid.wpa_psk = hpsk;
1651 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1655 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1656 wpa_s->p2p_group_common_freqs_num);
1658 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1659 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1660 i, wpa_s->p2p_group_common_freqs[i]);
1664 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1665 struct p2p_go_neg_results *params)
1667 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1669 wpa_s->p2p_group_common_freqs_num = 0;
1670 os_free(wpa_s->p2p_group_common_freqs);
1671 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1672 if (!wpa_s->p2p_group_common_freqs)
1675 for (i = 0; i < len; i++) {
1676 if (!wpa_s->go_params->freq_list[i])
1678 wpa_s->p2p_group_common_freqs[i] =
1679 wpa_s->go_params->freq_list[i];
1681 wpa_s->p2p_group_common_freqs_num = i;
1685 static void p2p_config_write(struct wpa_supplicant *wpa_s)
1687 #ifndef CONFIG_NO_CONFIG_WRITE
1688 if (wpa_s->parent->conf->update_config &&
1689 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1690 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1691 #endif /* CONFIG_NO_CONFIG_WRITE */
1695 static void p2p_go_configured(void *ctx, void *data)
1697 struct wpa_supplicant *wpa_s = ctx;
1698 struct p2p_go_neg_results *params = data;
1699 struct wpa_ssid *ssid;
1700 int network_id = -1;
1702 p2p_go_save_group_common_freqs(wpa_s, params);
1703 p2p_go_dump_common_freqs(wpa_s);
1705 ssid = wpa_s->current_ssid;
1706 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1707 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1708 if (wpa_s->global->p2p_group_formation == wpa_s)
1709 wpa_s->global->p2p_group_formation = NULL;
1710 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1711 params->passphrase[0] == '\0' ?
1714 wpa_s->global->p2p_dev_addr,
1715 params->persistent_group, "");
1716 wpa_s->group_formation_reported = 1;
1718 if (wpa_s->parent->p2ps_method_config_any) {
1719 if (is_zero_ether_addr(wpa_s->parent->p2ps_join_addr)) {
1720 wpa_dbg(wpa_s, MSG_DEBUG,
1721 "P2PS: Setting default PIN for ANY");
1722 wpa_supplicant_ap_wps_pin(wpa_s, NULL,
1723 "12345670", NULL, 0,
1726 wpa_dbg(wpa_s, MSG_DEBUG,
1727 "P2PS: Setting default PIN for " MACSTR,
1728 MAC2STR(wpa_s->parent->p2ps_join_addr));
1729 wpa_supplicant_ap_wps_pin(
1730 wpa_s, wpa_s->parent->p2ps_join_addr,
1731 "12345670", NULL, 0, 0);
1733 wpa_s->parent->p2ps_method_config_any = 0;
1736 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1737 if (params->persistent_group) {
1738 network_id = wpas_p2p_store_persistent_group(
1739 wpa_s->parent, ssid,
1740 wpa_s->global->p2p_dev_addr);
1741 wpas_p2p_add_psk_list(wpa_s, ssid);
1744 network_id = ssid->id;
1745 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1746 wpas_p2p_cross_connect_setup(wpa_s);
1747 wpas_p2p_set_group_idle_timeout(wpa_s);
1749 if (wpa_s->p2p_first_connection_timeout) {
1750 wpa_dbg(wpa_s, MSG_DEBUG,
1751 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1752 wpa_s->p2p_first_connection_timeout);
1753 wpa_s->p2p_go_group_formation_completed = 0;
1754 wpa_s->global->p2p_group_formation = wpa_s;
1755 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1756 wpa_s->parent, NULL);
1757 eloop_register_timeout(
1758 wpa_s->p2p_first_connection_timeout, 0,
1759 wpas_p2p_group_formation_timeout,
1760 wpa_s->parent, NULL);
1766 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1767 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1768 params->peer_interface_addr)) {
1769 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1773 if (params->wps_method == WPS_PBC) {
1774 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1775 params->peer_device_addr);
1776 #ifdef CONFIG_WPS_NFC
1777 } else if (params->wps_method == WPS_NFC) {
1778 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1779 DEV_PW_NFC_CONNECTION_HANDOVER &&
1780 !wpa_s->parent->p2p_oob_dev_pw) {
1781 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1784 wpas_ap_wps_add_nfc_pw(
1785 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1786 wpa_s->parent->p2p_oob_dev_pw,
1787 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1788 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1789 #endif /* CONFIG_WPS_NFC */
1790 } else if (wpa_s->p2p_pin[0])
1791 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1792 wpa_s->p2p_pin, NULL, 0, 0);
1793 os_free(wpa_s->go_params);
1794 wpa_s->go_params = NULL;
1798 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1799 struct p2p_go_neg_results *params,
1800 int group_formation)
1802 struct wpa_ssid *ssid;
1804 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1805 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1806 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1811 ssid = wpa_config_add_network(wpa_s->conf);
1813 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1817 wpa_s->show_group_started = 0;
1818 wpa_s->p2p_go_group_formation_completed = 0;
1819 wpa_s->group_formation_reported = 0;
1820 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1822 wpa_config_set_network_defaults(ssid);
1823 ssid->temporary = 1;
1824 ssid->p2p_group = 1;
1825 ssid->p2p_persistent_group = params->persistent_group;
1826 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1828 ssid->frequency = params->freq;
1829 ssid->ht40 = params->ht40;
1830 ssid->vht = params->vht;
1831 ssid->ssid = os_zalloc(params->ssid_len + 1);
1833 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1834 ssid->ssid_len = params->ssid_len;
1836 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1837 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1838 ssid->proto = WPA_PROTO_RSN;
1839 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1840 ssid->group_cipher = WPA_CIPHER_CCMP;
1841 if (params->freq > 56160) {
1843 * Enable GCMP instead of CCMP as pairwise_cipher and
1844 * group_cipher in 60 GHz.
1846 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1847 ssid->group_cipher = WPA_CIPHER_GCMP;
1849 if (os_strlen(params->passphrase) > 0) {
1850 ssid->passphrase = os_strdup(params->passphrase);
1851 if (ssid->passphrase == NULL) {
1852 wpa_msg_global(wpa_s, MSG_ERROR,
1853 "P2P: Failed to copy passphrase for GO");
1854 wpa_config_remove_network(wpa_s->conf, ssid->id);
1858 ssid->passphrase = NULL;
1859 ssid->psk_set = params->psk_set;
1861 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1862 else if (ssid->passphrase)
1863 wpa_config_update_psk(ssid);
1864 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
1866 wpa_s->ap_configured_cb = p2p_go_configured;
1867 wpa_s->ap_configured_cb_ctx = wpa_s;
1868 wpa_s->ap_configured_cb_data = wpa_s->go_params;
1869 wpa_s->scan_req = NORMAL_SCAN_REQ;
1870 wpa_s->connect_without_scan = ssid;
1871 wpa_s->reassociate = 1;
1872 wpa_s->disconnected = 0;
1873 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1875 wpa_supplicant_req_scan(wpa_s, 0, 0);
1879 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1880 const struct wpa_supplicant *src)
1882 struct wpa_config *d;
1883 const struct wpa_config *s;
1888 #define C(n) if (s->n) d->n = os_strdup(s->n)
1897 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1898 os_memcpy(d->sec_device_type, s->sec_device_type,
1899 sizeof(d->sec_device_type));
1900 d->num_sec_device_types = s->num_sec_device_types;
1902 d->p2p_group_idle = s->p2p_group_idle;
1903 d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
1904 d->p2p_intra_bss = s->p2p_intra_bss;
1905 d->persistent_reconnect = s->persistent_reconnect;
1906 d->max_num_sta = s->max_num_sta;
1907 d->pbc_in_m1 = s->pbc_in_m1;
1908 d->ignore_old_scan_res = s->ignore_old_scan_res;
1909 d->beacon_int = s->beacon_int;
1910 d->dtim_period = s->dtim_period;
1911 d->p2p_go_ctwindow = s->p2p_go_ctwindow;
1912 d->disassoc_low_ack = s->disassoc_low_ack;
1913 d->disable_scan_offload = s->disable_scan_offload;
1914 d->passive_scan = s->passive_scan;
1916 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1917 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1918 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1920 d->p2p_cli_probe = s->p2p_cli_probe;
1924 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1925 char *ifname, size_t len)
1927 char *ifname_ptr = wpa_s->ifname;
1929 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1930 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1931 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1934 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1935 if (os_strlen(ifname) >= IFNAMSIZ &&
1936 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1939 /* Try to avoid going over the IFNAMSIZ length limit */
1940 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1941 if (os_snprintf_error(len, res) && len)
1942 ifname[len - 1] = '\0';
1947 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1948 enum wpa_driver_if_type type)
1950 char ifname[120], force_ifname[120];
1952 if (wpa_s->pending_interface_name[0]) {
1953 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1954 "- skip creation of a new one");
1955 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1956 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1957 "unknown?! ifname='%s'",
1958 wpa_s->pending_interface_name);
1964 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
1965 force_ifname[0] = '\0';
1967 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1969 wpa_s->p2p_group_idx++;
1971 wpa_s->pending_interface_type = type;
1972 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1973 wpa_s->pending_interface_addr, NULL) < 0) {
1974 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1979 if (force_ifname[0]) {
1980 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1982 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1983 sizeof(wpa_s->pending_interface_name));
1985 os_strlcpy(wpa_s->pending_interface_name, ifname,
1986 sizeof(wpa_s->pending_interface_name));
1987 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1988 MACSTR, wpa_s->pending_interface_name,
1989 MAC2STR(wpa_s->pending_interface_addr));
1995 static void wpas_p2p_remove_pending_group_interface(
1996 struct wpa_supplicant *wpa_s)
1998 if (!wpa_s->pending_interface_name[0] ||
1999 is_zero_ether_addr(wpa_s->pending_interface_addr))
2000 return; /* No pending virtual interface */
2002 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
2003 wpa_s->pending_interface_name);
2004 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
2005 wpa_s->pending_interface_name);
2006 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2007 wpa_s->pending_interface_name[0] = '\0';
2008 wpa_s->global->pending_group_iface_for_p2ps = 0;
2012 static struct wpa_supplicant *
2013 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
2015 struct wpa_interface iface;
2016 struct wpa_supplicant *group_wpa_s;
2018 if (!wpa_s->pending_interface_name[0]) {
2019 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
2020 if (!wpas_p2p_create_iface(wpa_s))
2023 * Something has forced us to remove the pending interface; try
2024 * to create a new one and hope for the best that we will get
2025 * the same local address.
2027 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2028 WPA_IF_P2P_CLIENT) < 0)
2032 os_memset(&iface, 0, sizeof(iface));
2033 iface.ifname = wpa_s->pending_interface_name;
2034 iface.driver = wpa_s->driver->name;
2035 if (wpa_s->conf->ctrl_interface == NULL &&
2036 wpa_s->parent != wpa_s &&
2038 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2039 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2041 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
2042 iface.driver_param = wpa_s->conf->driver_param;
2043 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
2044 if (group_wpa_s == NULL) {
2045 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2046 "wpa_supplicant interface");
2049 wpa_s->pending_interface_name[0] = '\0';
2050 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2051 P2P_GROUP_INTERFACE_CLIENT;
2052 wpa_s->global->p2p_group_formation = group_wpa_s;
2053 wpa_s->global->pending_group_iface_for_p2ps = 0;
2055 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2061 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2064 struct wpa_supplicant *wpa_s = eloop_ctx;
2065 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2066 wpas_p2p_group_formation_failed(wpa_s, 0);
2070 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2071 int already_deleted)
2073 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2074 wpa_s->parent, NULL);
2075 if (wpa_s->global->p2p)
2076 p2p_group_formation_failed(wpa_s->global->p2p);
2077 wpas_group_formation_completed(wpa_s, 0, already_deleted);
2081 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2083 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2084 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2085 wpa_s->parent, NULL);
2086 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2087 wpa_s->parent, NULL);
2088 wpa_s->global->p2p_fail_on_wps_complete = 0;
2092 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2094 if (wpa_s->global->p2p_group_formation != wpa_s)
2096 /* Speed up group formation timeout since this cannot succeed */
2097 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2098 wpa_s->parent, NULL);
2099 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2100 wpa_s->parent, NULL);
2104 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2106 struct wpa_supplicant *wpa_s = ctx;
2108 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2109 wpa_drv_cancel_remain_on_channel(wpa_s);
2110 wpa_s->off_channel_freq = 0;
2111 wpa_s->roc_waiting_drv_freq = 0;
2115 wpa_msg_global(wpa_s, MSG_INFO,
2116 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2118 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2119 wpas_p2p_remove_pending_group_interface(wpa_s);
2123 if (!res->role_go) {
2124 /* Inform driver of the operating channel of GO. */
2125 wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2128 if (wpa_s->p2p_go_ht40)
2130 if (wpa_s->p2p_go_vht)
2133 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2134 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2136 res->role_go ? "GO" : "client", res->freq, res->ht40,
2137 MAC2STR(res->peer_device_addr),
2138 MAC2STR(res->peer_interface_addr),
2139 p2p_wps_method_text(res->wps_method));
2140 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2142 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2143 struct wpa_ssid *ssid;
2144 ssid = wpa_config_get_network(wpa_s->conf,
2145 wpa_s->p2p_persistent_id);
2146 if (ssid && ssid->disabled == 2 &&
2147 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2148 size_t len = os_strlen(ssid->passphrase);
2149 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2150 "on requested persistent group");
2151 os_memcpy(res->passphrase, ssid->passphrase, len);
2152 res->passphrase[len] = '\0';
2156 if (wpa_s->create_p2p_iface) {
2157 struct wpa_supplicant *group_wpa_s =
2158 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2159 if (group_wpa_s == NULL) {
2160 wpas_p2p_remove_pending_group_interface(wpa_s);
2161 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2163 wpas_p2p_group_formation_failed(wpa_s, 1);
2166 if (group_wpa_s != wpa_s) {
2167 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2168 sizeof(group_wpa_s->p2p_pin));
2169 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2171 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2172 wpa_s->pending_interface_name[0] = '\0';
2173 group_wpa_s->p2p_in_provisioning = 1;
2176 wpas_start_wps_go(group_wpa_s, res, 1);
2178 os_get_reltime(&group_wpa_s->scan_min_time);
2179 wpas_start_wps_enrollee(group_wpa_s, res);
2182 wpa_s->p2p_in_provisioning = 1;
2183 wpa_s->global->p2p_group_formation = wpa_s;
2186 wpas_start_wps_go(wpa_s, res, 1);
2188 os_get_reltime(&wpa_s->scan_min_time);
2189 wpas_start_wps_enrollee(ctx, res);
2193 wpa_s->p2p_long_listen = 0;
2194 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2196 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2197 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2198 (res->peer_config_timeout % 100) * 10000,
2199 wpas_p2p_group_formation_timeout, wpa_s, NULL);
2203 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2206 struct wpa_supplicant *wpa_s = ctx;
2207 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2208 " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2209 dev_passwd_id, go_intent);
2211 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
2215 static void wpas_dev_found(void *ctx, const u8 *addr,
2216 const struct p2p_peer_info *info,
2219 #ifndef CONFIG_NO_STDOUT_DEBUG
2220 struct wpa_supplicant *wpa_s = ctx;
2221 char devtype[WPS_DEV_TYPE_BUFSIZE];
2222 char *wfd_dev_info_hex = NULL;
2224 #ifdef CONFIG_WIFI_DISPLAY
2225 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2226 WFD_SUBELEM_DEVICE_INFO);
2227 #endif /* CONFIG_WIFI_DISPLAY */
2229 if (info->p2ps_instance) {
2231 const u8 *buf = wpabuf_head(info->p2ps_instance);
2232 size_t len = wpabuf_len(info->p2ps_instance);
2239 if (len < 4 + 2 + 1)
2241 id = WPA_GET_LE32(buf);
2243 methods = WPA_GET_BE16(buf);
2246 if (str_len > len - 4 - 2 - 1)
2248 os_memcpy(str, buf, str_len);
2249 str[str_len] = '\0';
2251 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2253 wpa_msg_global(wpa_s, MSG_INFO,
2254 P2P_EVENT_DEVICE_FOUND MACSTR
2255 " p2p_dev_addr=" MACSTR
2256 " pri_dev_type=%s name='%s'"
2257 " config_methods=0x%x"
2260 " adv_id=%x asp_svc=%s%s",
2262 MAC2STR(info->p2p_device_addr),
2263 wps_dev_type_bin2str(
2265 devtype, sizeof(devtype)),
2266 info->device_name, methods,
2267 info->dev_capab, info->group_capab,
2269 info->vendor_elems ?
2270 " vendor_elems=1" : "");
2275 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2276 " p2p_dev_addr=" MACSTR
2277 " pri_dev_type=%s name='%s' config_methods=0x%x "
2278 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2279 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2280 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2282 info->device_name, info->config_methods,
2283 info->dev_capab, info->group_capab,
2284 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2285 wfd_dev_info_hex ? wfd_dev_info_hex : "",
2286 info->vendor_elems ? " vendor_elems=1" : "",
2290 os_free(wfd_dev_info_hex);
2291 #endif /* CONFIG_NO_STDOUT_DEBUG */
2293 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2297 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2299 struct wpa_supplicant *wpa_s = ctx;
2301 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2302 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2304 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2308 static void wpas_find_stopped(void *ctx)
2310 struct wpa_supplicant *wpa_s = ctx;
2311 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2312 wpas_notify_p2p_find_stopped(wpa_s);
2316 struct wpas_p2p_listen_work {
2318 unsigned int duration;
2319 struct wpabuf *probe_resp_ie;
2323 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2327 wpabuf_free(lwork->probe_resp_ie);
2332 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2334 struct wpas_p2p_listen_work *lwork;
2336 if (!wpa_s->p2p_listen_work)
2339 lwork = wpa_s->p2p_listen_work->ctx;
2340 wpas_p2p_listen_work_free(lwork);
2341 radio_work_done(wpa_s->p2p_listen_work);
2342 wpa_s->p2p_listen_work = NULL;
2346 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2348 struct wpa_supplicant *wpa_s = work->wpa_s;
2349 struct wpas_p2p_listen_work *lwork = work->ctx;
2350 unsigned int duration;
2353 if (work->started) {
2354 wpa_s->p2p_listen_work = NULL;
2355 wpas_stop_listen(wpa_s);
2357 wpas_p2p_listen_work_free(lwork);
2361 wpa_s->p2p_listen_work = work;
2363 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2365 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2366 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2367 "report received Probe Request frames");
2368 wpas_p2p_listen_work_done(wpa_s);
2372 wpa_s->pending_listen_freq = lwork->freq;
2373 wpa_s->pending_listen_duration = lwork->duration;
2375 duration = lwork->duration;
2376 #ifdef CONFIG_TESTING_OPTIONS
2377 if (wpa_s->extra_roc_dur) {
2378 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2379 duration, duration + wpa_s->extra_roc_dur);
2380 duration += wpa_s->extra_roc_dur;
2382 #endif /* CONFIG_TESTING_OPTIONS */
2384 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2385 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2386 "to remain on channel (%u MHz) for Listen "
2387 "state", lwork->freq);
2388 wpas_p2p_listen_work_done(wpa_s);
2389 wpa_s->pending_listen_freq = 0;
2392 wpa_s->off_channel_freq = 0;
2393 wpa_s->roc_waiting_drv_freq = lwork->freq;
2397 static int wpas_start_listen(void *ctx, unsigned int freq,
2398 unsigned int duration,
2399 const struct wpabuf *probe_resp_ie)
2401 struct wpa_supplicant *wpa_s = ctx;
2402 struct wpas_p2p_listen_work *lwork;
2404 if (wpa_s->p2p_listen_work) {
2405 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2409 lwork = os_zalloc(sizeof(*lwork));
2413 lwork->duration = duration;
2414 if (probe_resp_ie) {
2415 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2416 if (lwork->probe_resp_ie == NULL) {
2417 wpas_p2p_listen_work_free(lwork);
2422 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2424 wpas_p2p_listen_work_free(lwork);
2432 static void wpas_stop_listen(void *ctx)
2434 struct wpa_supplicant *wpa_s = ctx;
2435 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2436 wpa_drv_cancel_remain_on_channel(wpa_s);
2437 wpa_s->off_channel_freq = 0;
2438 wpa_s->roc_waiting_drv_freq = 0;
2440 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2443 * Don't cancel Probe Request RX reporting for a connected P2P Client
2444 * handling Probe Request frames.
2446 if (!wpa_s->p2p_cli_probe)
2447 wpa_drv_probe_req_report(wpa_s, 0);
2449 wpas_p2p_listen_work_done(wpa_s);
2453 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2456 struct wpa_supplicant *wpa_s = ctx;
2457 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2462 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2463 const u8 *peer, const char *params,
2464 unsigned int generated_pin)
2466 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2467 " %08d%s", MAC2STR(peer), generated_pin, params);
2471 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2472 const u8 *peer, const char *params)
2474 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2475 "%s", MAC2STR(peer), params);
2479 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2480 const u8 *dev_addr, const u8 *pri_dev_type,
2481 const char *dev_name, u16 supp_config_methods,
2482 u8 dev_capab, u8 group_capab, const u8 *group_id,
2483 size_t group_id_len)
2485 struct wpa_supplicant *wpa_s = ctx;
2486 char devtype[WPS_DEV_TYPE_BUFSIZE];
2488 u8 empty_dev_type[8];
2489 unsigned int generated_pin = 0;
2490 struct wpa_supplicant *group = NULL;
2494 for (group = wpa_s->global->ifaces; group; group = group->next)
2496 struct wpa_ssid *s = group->current_ssid;
2498 s->mode == WPAS_MODE_P2P_GO &&
2499 group_id_len - ETH_ALEN == s->ssid_len &&
2500 os_memcmp(group_id + ETH_ALEN, s->ssid,
2506 if (pri_dev_type == NULL) {
2507 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2508 pri_dev_type = empty_dev_type;
2510 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2511 " pri_dev_type=%s name='%s' config_methods=0x%x "
2512 "dev_capab=0x%x group_capab=0x%x%s%s",
2514 wps_dev_type_bin2str(pri_dev_type, devtype,
2516 dev_name, supp_config_methods, dev_capab, group_capab,
2517 group ? " group=" : "",
2518 group ? group->ifname : "");
2519 if (os_snprintf_error(sizeof(params), res))
2520 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2521 params[sizeof(params) - 1] = '\0';
2523 if (config_methods & WPS_CONFIG_DISPLAY) {
2524 generated_pin = wps_generate_pin();
2525 wpas_prov_disc_local_display(wpa_s, peer, params,
2527 } else if (config_methods & WPS_CONFIG_KEYPAD)
2528 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2529 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2530 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2531 MACSTR "%s", MAC2STR(peer), params);
2533 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2534 P2P_PROV_DISC_SUCCESS,
2535 config_methods, generated_pin);
2539 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2541 struct wpa_supplicant *wpa_s = ctx;
2542 unsigned int generated_pin = 0;
2545 if (wpa_s->pending_pd_before_join &&
2546 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2547 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2548 wpa_s->pending_pd_before_join = 0;
2549 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2550 "join-existing-group operation");
2551 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2555 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2556 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2559 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2560 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2561 if (os_snprintf_error(sizeof(params), res))
2562 params[sizeof(params) - 1] = '\0';
2566 if (config_methods & WPS_CONFIG_DISPLAY)
2567 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2568 else if (config_methods & WPS_CONFIG_KEYPAD) {
2569 generated_pin = wps_generate_pin();
2570 wpas_prov_disc_local_display(wpa_s, peer, params,
2572 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2573 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2574 MACSTR "%s", MAC2STR(peer), params);
2576 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2577 P2P_PROV_DISC_SUCCESS,
2578 config_methods, generated_pin);
2582 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2583 enum p2p_prov_disc_status status,
2584 u32 adv_id, const u8 *adv_mac,
2585 const char *deferred_session_resp)
2587 struct wpa_supplicant *wpa_s = ctx;
2589 if (wpa_s->p2p_fallback_to_go_neg) {
2590 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2591 "failed - fall back to GO Negotiation");
2592 wpa_msg_global(wpa_s->parent, MSG_INFO,
2593 P2P_EVENT_FALLBACK_TO_GO_NEG
2594 "reason=PD-failed");
2595 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2599 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2600 wpa_s->pending_pd_before_join = 0;
2601 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2602 "join-existing-group operation (no ACK for PD "
2604 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2608 if (adv_id && adv_mac && deferred_session_resp) {
2609 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2610 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2611 " deferred_session_resp='%s'",
2612 MAC2STR(peer), status, adv_id,
2613 deferred_session_resp);
2614 } else if (adv_id && adv_mac) {
2615 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2616 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2617 MAC2STR(peer), status, adv_id);
2619 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2620 " p2p_dev_addr=" MACSTR " status=%d",
2621 MAC2STR(peer), status);
2624 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2629 static int freq_included(struct wpa_supplicant *wpa_s,
2630 const struct p2p_channels *channels,
2633 if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
2634 wpas_p2p_go_is_peer_freq(wpa_s, freq))
2640 static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
2642 unsigned int num = P2P_MAX_CHANNELS;
2646 p2p_go_dump_common_freqs(wpa_s);
2647 common_freqs = os_calloc(num, sizeof(int));
2651 ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
2653 wpa_dbg(wpa_s, MSG_DEBUG,
2654 "P2P: Failed to get group common freqs");
2655 os_free(common_freqs);
2659 os_free(wpa_s->p2p_group_common_freqs);
2660 wpa_s->p2p_group_common_freqs = common_freqs;
2661 wpa_s->p2p_group_common_freqs_num = num;
2662 p2p_go_dump_common_freqs(wpa_s);
2667 * Check if the given frequency is one of the possible operating frequencies
2668 * set after the completion of the GO Negotiation.
2670 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
2674 p2p_go_dump_common_freqs(wpa_s);
2676 /* assume no restrictions */
2677 if (!wpa_s->p2p_group_common_freqs_num)
2680 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
2681 if (wpa_s->p2p_group_common_freqs[i] == freq)
2689 * Pick the best frequency to use from all the currently used frequencies.
2691 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2692 struct wpa_used_freq_data *freqs,
2697 /* find a candidate freq that is supported by P2P */
2698 for (c = 0; c < num; c++)
2699 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2705 /* once we have a candidate, try to find a 'better' one */
2706 for (i = c + 1; i < num; i++) {
2707 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2711 * 1. Infrastructure station interfaces have higher preference.
2712 * 2. P2P Clients have higher preference.
2715 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2720 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2723 return freqs[c].freq;
2727 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2728 const u8 *go_dev_addr, const u8 *ssid,
2729 size_t ssid_len, int *go, u8 *group_bssid,
2730 int *force_freq, int persistent_group,
2731 const struct p2p_channels *channels,
2734 struct wpa_supplicant *wpa_s = ctx;
2736 struct wpa_used_freq_data *freqs;
2737 struct wpa_supplicant *grp;
2740 if (!persistent_group) {
2741 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2742 " to join an active group (SSID: %s)",
2743 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2744 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2745 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2747 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2748 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2749 "authorized invitation");
2753 #ifdef CONFIG_WPS_NFC
2754 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2755 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2756 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2757 wpa_s->p2p_wps_method = WPS_NFC;
2758 wpa_s->pending_join_wps_method = WPS_NFC;
2759 os_memcpy(wpa_s->pending_join_dev_addr,
2760 go_dev_addr, ETH_ALEN);
2761 os_memcpy(wpa_s->pending_join_iface_addr,
2765 #endif /* CONFIG_WPS_NFC */
2768 * Do not accept the invitation automatically; notify user and
2771 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2774 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2776 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2777 "running persistent group");
2779 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2783 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2784 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2785 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2786 "invitation to re-invoke a persistent group");
2787 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2788 } else if (!wpa_s->conf->persistent_reconnect)
2789 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2791 for (s = wpa_s->conf->ssid; s; s = s->next) {
2792 if (s->disabled == 2 &&
2793 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2794 s->ssid_len == ssid_len &&
2795 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2800 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2801 " requested reinvocation of an unknown group",
2803 return P2P_SC_FAIL_UNKNOWN_GROUP;
2806 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2808 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2809 wpa_printf(MSG_DEBUG, "P2P: The only available "
2810 "interface is already in use - reject "
2812 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2814 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2815 } else if (s->mode == WPAS_MODE_P2P_GO) {
2817 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2819 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2820 "interface address for the group");
2821 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2823 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2828 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2831 freqs = os_calloc(wpa_s->num_multichan_concurrent,
2832 sizeof(struct wpa_used_freq_data));
2834 int num_channels = wpa_s->num_multichan_concurrent;
2835 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2836 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2840 /* Get one of the frequencies currently in use */
2841 if (best_freq > 0) {
2842 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2843 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2845 if (wpa_s->num_multichan_concurrent < 2 ||
2846 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2847 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2848 *force_freq = best_freq;
2852 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2853 wpas_p2p_num_unused_channels(wpa_s) > 0) {
2855 /* We are the client */
2856 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2857 "running a GO but we are capable of MCC, "
2858 "figure out the best channel to use");
2860 } else if (!freq_included(wpa_s, channels, *force_freq)) {
2861 /* We are the GO, and *force_freq is not in the
2863 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2864 "in intersection but we are capable of MCC, "
2865 "figure out the best channel to use",
2871 return P2P_SC_SUCCESS;
2875 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2876 const u8 *ssid, size_t ssid_len,
2877 const u8 *go_dev_addr, u8 status,
2880 struct wpa_supplicant *wpa_s = ctx;
2883 for (s = wpa_s->conf->ssid; s; s = s->next) {
2884 if (s->disabled == 2 &&
2885 s->ssid_len == ssid_len &&
2886 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2890 if (status == P2P_SC_SUCCESS) {
2891 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2892 " was accepted; op_freq=%d MHz, SSID=%s",
2893 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
2895 int go = s->mode == WPAS_MODE_P2P_GO;
2896 wpas_p2p_group_add_persistent(
2897 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
2898 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
2901 wpa_s->user_initiated_pd = 0;
2902 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2903 wpa_s->p2p_wps_method, 0, op_freq,
2909 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2910 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2911 " was rejected (status %u)", MAC2STR(sa), status);
2917 wpa_msg_global(wpa_s, MSG_INFO,
2918 P2P_EVENT_INVITATION_RECEIVED
2919 "sa=" MACSTR " go_dev_addr=" MACSTR
2920 " bssid=" MACSTR " unknown-network",
2921 MAC2STR(sa), MAC2STR(go_dev_addr),
2924 wpa_msg_global(wpa_s, MSG_INFO,
2925 P2P_EVENT_INVITATION_RECEIVED
2926 "sa=" MACSTR " go_dev_addr=" MACSTR
2928 MAC2STR(sa), MAC2STR(go_dev_addr));
2933 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
2934 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2935 "sa=" MACSTR " persistent=%d freq=%d",
2936 MAC2STR(sa), s->id, op_freq);
2938 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2939 "sa=" MACSTR " persistent=%d",
2940 MAC2STR(sa), s->id);
2945 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
2946 struct wpa_ssid *ssid,
2947 const u8 *peer, int inv)
2950 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
2955 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
2956 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
2960 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
2961 if (ssid->mode != WPAS_MODE_P2P_GO &&
2962 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
2963 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
2964 "due to invitation result", ssid->id);
2965 wpas_notify_network_removed(wpa_s, ssid);
2966 wpa_config_remove_network(wpa_s->conf, ssid->id);
2969 return; /* Peer not found in client list */
2972 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
2973 "group %d client list%s",
2974 MAC2STR(peer), ssid->id,
2975 inv ? " due to invitation result" : "");
2976 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
2977 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
2978 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
2979 ssid->num_p2p_clients--;
2980 if (p2p_wpa_s->conf->update_config &&
2981 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
2982 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
2986 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
2989 struct wpa_ssid *ssid;
2991 wpa_s = wpa_s->global->p2p_invite_group;
2993 return; /* No known invitation group */
2994 ssid = wpa_s->current_ssid;
2995 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
2996 !ssid->p2p_persistent_group)
2997 return; /* Not operating as a GO in persistent group */
2998 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
2999 ssid->ssid, ssid->ssid_len);
3000 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3004 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3005 const struct p2p_channels *channels,
3006 const u8 *peer, int neg_freq,
3009 struct wpa_supplicant *wpa_s = ctx;
3010 struct wpa_ssid *ssid;
3014 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3015 "status=%d " MACSTR,
3016 status, MAC2STR(bssid));
3018 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3019 "status=%d ", status);
3021 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3023 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3024 status, MAC2STR(peer));
3025 if (wpa_s->pending_invite_ssid_id == -1) {
3026 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3027 wpas_remove_persistent_client(wpa_s, peer);
3028 return; /* Invitation to active group */
3031 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3032 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3033 "invitation exchange to indicate readiness for "
3037 if (status != P2P_SC_SUCCESS) {
3038 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3039 ssid = wpa_config_get_network(
3040 wpa_s->conf, wpa_s->pending_invite_ssid_id);
3041 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3043 wpas_p2p_remove_pending_group_interface(wpa_s);
3047 ssid = wpa_config_get_network(wpa_s->conf,
3048 wpa_s->pending_invite_ssid_id);
3050 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3051 "data matching with invitation");
3056 * The peer could have missed our ctrl::ack frame for Invitation
3057 * Response and continue retransmitting the frame. To reduce the
3058 * likelihood of the peer not getting successful TX status for the
3059 * Invitation Response frame, wait a short time here before starting
3060 * the persistent group so that we will remain on the current channel to
3061 * acknowledge any possible retransmission from the peer.
3063 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3064 "starting persistent group");
3067 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3068 freq_included(wpa_s, channels, neg_freq))
3070 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3071 freq_included(wpa_s, channels, peer_oper_freq))
3072 freq = peer_oper_freq;
3076 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3077 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3078 wpas_p2p_group_add_persistent(wpa_s, ssid,
3079 ssid->mode == WPAS_MODE_P2P_GO,
3080 wpa_s->p2p_persistent_go_freq,
3082 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3084 ssid->mode == WPAS_MODE_P2P_GO ?
3085 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3090 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3093 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3095 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3099 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3101 reg->channel[reg->channels] = chan;
3106 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3107 struct p2p_channels *chan,
3108 struct p2p_channels *cli_chan)
3112 wpa_s->global->p2p_24ghz_social_channels = 1;
3114 os_memset(cli_chan, 0, sizeof(*cli_chan));
3116 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3119 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3120 chan->reg_class[cla].reg_class = 81;
3121 chan->reg_class[cla].channels = 0;
3122 for (i = 0; i < 11; i++) {
3123 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3124 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3126 if (chan->reg_class[cla].channels)
3129 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3132 /* Operating class 115 - 5 GHz, channels 36-48 */
3133 chan->reg_class[cla].reg_class = 115;
3134 chan->reg_class[cla].channels = 0;
3135 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3136 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3137 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3138 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3139 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3140 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3141 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3142 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3143 if (chan->reg_class[cla].channels)
3146 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3149 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3150 chan->reg_class[cla].reg_class = 124;
3151 chan->reg_class[cla].channels = 0;
3152 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3153 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3154 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3155 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3156 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3157 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3158 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3159 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3160 if (chan->reg_class[cla].channels)
3163 chan->reg_classes = cla;
3168 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3170 enum hostapd_hw_mode mode)
3174 for (i = 0; i < num_modes; i++) {
3175 if (modes[i].mode == mode)
3184 NOT_ALLOWED, NO_IR, ALLOWED
3187 static int has_channel(struct wpa_global *global,
3188 struct hostapd_hw_modes *mode, u8 chan, int *flags)
3193 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3195 if (wpas_p2p_disallowed_freq(global, freq))
3198 for (i = 0; i < mode->num_channels; i++) {
3199 if (mode->channels[i].chan == chan) {
3201 *flags = mode->channels[i].flag;
3202 if (mode->channels[i].flag &
3203 (HOSTAPD_CHAN_DISABLED |
3204 HOSTAPD_CHAN_RADAR))
3206 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3216 struct p2p_oper_class_map {
3217 enum hostapd_hw_mode mode;
3222 enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
3225 static const struct p2p_oper_class_map op_class[] = {
3226 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
3227 #if 0 /* Do not enable HT40 on 2 GHz for now */
3228 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3229 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3231 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3232 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3233 { HOSTAPD_MODE_IEEE80211A, 125, 149, 169, 4, BW20 },
3234 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3235 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3236 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3237 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
3240 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3241 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3242 * 80 MHz, but currently use the following definition for simplicity
3243 * (these center frequencies are not actual channels, which makes
3244 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3245 * removing invalid channels.
3247 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
3248 { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
3249 { -1, 0, 0, 0, 0, BW20 }
3253 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3254 struct hostapd_hw_modes *mode,
3257 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3260 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3263 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3265 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3266 * so the center channel is 6 channels away from the start/end.
3268 if (channel >= center_channels[i] - 6 &&
3269 channel <= center_channels[i] + 6)
3270 return center_channels[i];
3276 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3277 struct hostapd_hw_modes *mode,
3282 enum chan_allowed res, ret = ALLOWED;
3284 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3287 if (center_chan >= 58 && center_chan <= 138)
3288 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3290 /* check all the channels are available */
3291 for (i = 0; i < 4; i++) {
3292 int adj_chan = center_chan - 6 + i * 4;
3294 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3295 if (res == NOT_ALLOWED)
3300 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3302 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3304 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3306 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3314 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3315 struct hostapd_hw_modes *mode,
3319 enum chan_allowed res, res2;
3321 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3322 if (bw == BW40MINUS) {
3323 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3325 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3326 } else if (bw == BW40PLUS) {
3327 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3329 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3330 } else if (bw == BW80) {
3331 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3334 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3336 if (res == NO_IR || res2 == NO_IR)
3342 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3343 struct p2p_channels *chan,
3344 struct p2p_channels *cli_chan)
3346 struct hostapd_hw_modes *mode;
3347 int cla, op, cli_cla;
3349 if (wpa_s->hw.modes == NULL) {
3350 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3351 "of all supported channels; assume dualband "
3353 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3358 for (op = 0; op_class[op].op_class; op++) {
3359 const struct p2p_oper_class_map *o = &op_class[op];
3361 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3363 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3366 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3367 wpa_s->global->p2p_24ghz_social_channels = 1;
3368 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3369 enum chan_allowed res;
3370 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3371 if (res == ALLOWED) {
3373 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3375 reg = &chan->reg_class[cla];
3377 reg->reg_class = o->op_class;
3379 reg->channel[reg->channels] = ch;
3381 } else if (res == NO_IR &&
3382 wpa_s->conf->p2p_add_cli_chan) {
3383 if (cli_reg == NULL) {
3384 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3386 cli_reg = &cli_chan->reg_class[cli_cla];
3388 cli_reg->reg_class = o->op_class;
3390 cli_reg->channel[cli_reg->channels] = ch;
3391 cli_reg->channels++;
3395 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3396 reg->channel, reg->channels);
3399 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3400 cli_reg->channel, cli_reg->channels);
3404 chan->reg_classes = cla;
3405 cli_chan->reg_classes = cli_cla;
3411 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3412 struct hostapd_hw_modes *mode, u8 channel)
3415 enum chan_allowed ret;
3417 for (op = 0; op_class[op].op_class; op++) {
3418 const struct p2p_oper_class_map *o = &op_class[op];
3421 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3422 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3423 (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3426 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3428 return (o->bw == BW40MINUS) ? -1 : 1;
3435 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3436 struct hostapd_hw_modes *mode, u8 channel)
3438 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3441 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3445 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3448 struct wpa_supplicant *wpa_s = ctx;
3450 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3451 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3457 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3461 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3462 const u8 *ssid, size_t ssid_len)
3464 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3465 struct wpa_ssid *s = wpa_s->current_ssid;
3468 if (s->mode != WPAS_MODE_P2P_GO &&
3469 s->mode != WPAS_MODE_AP &&
3470 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3472 if (s->ssid_len != ssid_len ||
3473 os_memcmp(ssid, s->ssid, ssid_len) != 0)
3483 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3484 const u8 *peer_dev_addr)
3486 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3487 struct wpa_ssid *ssid = wpa_s->current_ssid;
3488 if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
3490 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3498 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3500 struct wpa_supplicant *wpa_s = ctx;
3502 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3506 static int wpas_is_concurrent_session_active(void *ctx)
3508 struct wpa_supplicant *wpa_s = ctx;
3509 struct wpa_supplicant *ifs;
3511 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3514 if (ifs->wpa_state > WPA_ASSOCIATED)
3521 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3523 struct wpa_supplicant *wpa_s = ctx;
3524 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3528 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3529 const char *conf_p2p_dev)
3531 struct wpa_interface iface;
3532 struct wpa_supplicant *p2pdev_wpa_s;
3534 char force_name[100];
3537 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3539 if (os_snprintf_error(sizeof(ifname), ret))
3541 force_name[0] = '\0';
3542 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3543 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3544 force_name, wpa_s->pending_interface_addr, NULL);
3546 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3549 os_strlcpy(wpa_s->pending_interface_name, ifname,
3550 sizeof(wpa_s->pending_interface_name));
3552 os_memset(&iface, 0, sizeof(iface));
3554 iface.ifname = wpa_s->pending_interface_name;
3555 iface.driver = wpa_s->driver->name;
3556 iface.driver_param = wpa_s->conf->driver_param;
3559 * If a P2P Device configuration file was given, use it as the interface
3560 * configuration file (instead of using parent's configuration file.
3563 iface.confname = conf_p2p_dev;
3564 iface.ctrl_interface = NULL;
3566 iface.confname = wpa_s->confname;
3567 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3570 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3571 if (!p2pdev_wpa_s) {
3572 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3576 wpa_s->pending_interface_name[0] = '\0';
3581 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3582 const u8 *noa, size_t noa_len)
3584 struct wpa_supplicant *wpa_s, *intf = ctx;
3587 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3588 if (wpa_s->waiting_presence_resp)
3592 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3595 wpa_s->waiting_presence_resp = 0;
3597 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3598 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3599 " status=%u noa=%s", MAC2STR(src), status, hex);
3603 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3604 size_t ssid_len, u8 *go_dev_addr,
3605 u8 *ret_ssid, size_t *ret_ssid_len,
3606 u8 *intended_iface_addr)
3608 struct wpa_supplicant *wpa_s = ctx;
3611 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3613 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3614 *ret_ssid_len = s->ssid_len;
3615 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3617 if (s->mode != WPAS_MODE_P2P_GO) {
3618 os_memset(intended_iface_addr, 0, ETH_ALEN);
3619 } else if (wpas_p2p_create_iface(wpa_s)) {
3620 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3623 os_memcpy(intended_iface_addr,
3624 wpa_s->pending_interface_addr, ETH_ALEN);
3626 os_memcpy(intended_iface_addr, wpa_s->own_addr,
3636 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3637 u8 *ssid, size_t *ssid_len, int *group_iface)
3639 struct wpa_supplicant *wpa_s = ctx;
3644 * group_iface will be set to 1 only if a dedicated interface for P2P
3645 * role is required. First, we try to reuse an active GO. However,
3646 * if it is not present, we will try to reactivate an existing
3647 * persistent group and set group_iface to 1, so the caller will know
3648 * that the pending interface should be used.
3651 s = wpas_p2p_group_go_ssid(wpa_s, bssid);
3653 s = wpas_p2p_get_persistent_go(wpa_s);
3654 *group_iface = wpas_p2p_create_iface(wpa_s);
3656 os_memcpy(bssid, s->bssid, ETH_ALEN);
3661 os_memcpy(intended_addr, bssid, ETH_ALEN);
3662 os_memcpy(ssid, s->ssid, s->ssid_len);
3663 *ssid_len = s->ssid_len;
3669 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3670 const u8 *ssid, size_t ssid_len)
3672 struct wpa_supplicant *wpa_s = ctx;
3674 int save_config = 0;
3677 /* Start with our first choice of Persistent Groups */
3678 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3679 if (go && ssid && ssid_len &&
3680 s->ssid_len == ssid_len &&
3681 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3682 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3685 /* Remove stale persistent group */
3686 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3687 wpa_config_remove_network(wpa_s->conf, s->id);
3692 for (i = 0; i < s->num_p2p_clients; i++) {
3693 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3694 peer, ETH_ALEN) != 0)
3697 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3698 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3699 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3702 s->num_p2p_clients--;
3707 p2p_config_write(wpa_s);
3709 /* Return TRUE if valid SSID remains */
3714 static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3715 const u8 *feat_cap, size_t feat_cap_len)
3717 static const char pref[] = " feature_cap=";
3723 * We expect a feature capability to contain at least one byte to be
3724 * reported. The string buffer provided by the caller function is
3725 * expected to be big enough to contain all bytes of the attribute for
3726 * known specifications. This function truncates the reported bytes if
3727 * the feature capability data exceeds the string buffer size.
3729 if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3732 os_memcpy(buf, pref, sizeof(pref));
3733 ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3734 buf_len - sizeof(pref) + 1,
3735 feat_cap, feat_cap_len);
3737 if (ret != (2 * (int) feat_cap_len))
3738 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3742 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3743 const u8 *adv_mac, const u8 *ses_mac,
3744 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3745 u8 conncap, int passwd_id,
3746 const u8 *persist_ssid,
3747 size_t persist_ssid_size, int response_done,
3748 int prov_start, const char *session_info,
3749 const u8 *feat_cap, size_t feat_cap_len)
3751 struct wpa_supplicant *wpa_s = ctx;
3753 struct wpa_ssid *persistent_go, *stale, *s;
3754 int save_config = 0;
3755 struct wpa_supplicant *go_wpa_s;
3756 char feat_cap_str[256];
3761 os_memset(mac, 0, ETH_ALEN);
3769 wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
3770 feat_cap, feat_cap_len);
3773 if (session_info == NULL) {
3774 wpa_msg_global(wpa_s, MSG_INFO,
3775 P2P_EVENT_P2PS_PROVISION_START MACSTR
3776 " adv_id=%x conncap=%x"
3778 " session=%x mac=" MACSTR
3779 " dev_passwd_id=%d%s",
3780 MAC2STR(dev), adv_id, conncap,
3782 ses_id, MAC2STR(ses_mac),
3783 passwd_id, feat_cap_str);
3785 wpa_msg_global(wpa_s, MSG_INFO,
3786 P2P_EVENT_P2PS_PROVISION_START MACSTR
3787 " adv_id=%x conncap=%x"
3789 " session=%x mac=" MACSTR
3790 " dev_passwd_id=%d info='%s'%s",
3791 MAC2STR(dev), adv_id, conncap,
3793 ses_id, MAC2STR(ses_mac),
3794 passwd_id, session_info, feat_cap_str);
3799 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
3800 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3802 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
3803 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3804 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3806 if (persistent_go && !persistent_go->num_p2p_clients) {
3807 /* remove empty persistent GO */
3808 wpa_config_remove_network(wpa_s->conf,
3812 wpa_msg_global(wpa_s, MSG_INFO,
3813 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3815 " adv_id=%x adv_mac=" MACSTR
3816 " session=%x mac=" MACSTR "%s",
3817 MAC2STR(dev), status,
3818 adv_id, MAC2STR(adv_mac),
3819 ses_id, MAC2STR(ses_mac), feat_cap_str);
3823 /* Clean up stale persistent groups with this device */
3824 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
3827 if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
3828 is_zero_ether_addr(grp_mac)) {
3829 wpa_dbg(wpa_s, MSG_ERROR,
3830 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
3835 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
3839 if (s && s->ssid_len == stale->ssid_len &&
3840 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
3841 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
3844 /* Remove stale persistent group */
3845 if (stale->mode != WPAS_MODE_P2P_GO ||
3846 stale->num_p2p_clients <= 1) {
3847 wpa_config_remove_network(wpa_s->conf, stale->id);
3851 for (i = 0; i < stale->num_p2p_clients; i++) {
3852 if (os_memcmp(stale->p2p_client_list +
3854 dev, ETH_ALEN) == 0) {
3855 os_memmove(stale->p2p_client_list +
3857 stale->p2p_client_list +
3859 (stale->num_p2p_clients -
3864 stale->num_p2p_clients--;
3870 p2p_config_write(wpa_s);
3873 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3874 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3876 if (persistent_go && s != persistent_go &&
3877 !persistent_go->num_p2p_clients) {
3878 /* remove empty persistent GO */
3879 wpa_config_remove_network(wpa_s->conf,
3884 wpa_msg_global(wpa_s, MSG_INFO,
3885 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3887 " adv_id=%x adv_mac=" MACSTR
3888 " session=%x mac=" MACSTR
3890 MAC2STR(dev), status,
3891 adv_id, MAC2STR(adv_mac),
3892 ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
3896 if (conncap == P2PS_SETUP_GROUP_OWNER) {
3898 * We need to copy the interface name. Simply saving a
3899 * pointer isn't enough, since if we use pending_interface_name
3900 * it will be overwritten when the group is added.
3902 char go_ifname[100];
3904 go_ifname[0] = '\0';
3906 wpa_s->global->pending_p2ps_group = 1;
3908 if (!wpas_p2p_create_iface(wpa_s))
3909 os_memcpy(go_ifname, wpa_s->ifname,
3911 else if (wpa_s->pending_interface_name[0])
3912 os_memcpy(go_ifname,
3913 wpa_s->pending_interface_name,
3916 if (!go_ifname[0]) {
3917 wpas_p2ps_prov_complete(
3918 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
3919 dev, adv_mac, ses_mac,
3920 grp_mac, adv_id, ses_id, 0, 0,
3921 NULL, 0, 0, 0, NULL, NULL, 0);
3925 /* If PD Resp complete, start up the GO */
3926 if (response_done && persistent_go) {
3927 wpas_p2p_group_add_persistent(
3928 wpa_s, persistent_go,
3929 0, 0, 0, 0, 0, NULL,
3930 persistent_go->mode ==
3932 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3934 } else if (response_done) {
3935 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
3938 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3939 os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
3941 wpa_s->p2ps_method_config_any = 1;
3943 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3944 os_memcpy(go_ifname, go_wpa_s->ifname,
3947 if (is_zero_ether_addr(grp_mac)) {
3948 wpa_dbg(go_wpa_s, MSG_DEBUG,
3949 "P2P: Setting PIN-1 for ANY");
3950 wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
3951 "12345670", NULL, 0,
3954 wpa_dbg(go_wpa_s, MSG_DEBUG,
3955 "P2P: Setting PIN-1 for " MACSTR,
3957 wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
3958 "12345670", NULL, 0,
3962 os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
3963 wpa_s->p2ps_method_config_any = 1;
3966 wpa_msg_global(wpa_s, MSG_INFO,
3967 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3968 " status=%d conncap=%x"
3969 " adv_id=%x adv_mac=" MACSTR
3970 " session=%x mac=" MACSTR
3971 " dev_passwd_id=%d go=%s%s",
3972 MAC2STR(dev), status, conncap,
3973 adv_id, MAC2STR(adv_mac),
3974 ses_id, MAC2STR(ses_mac),
3975 passwd_id, go_ifname, feat_cap_str);
3979 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3980 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3982 if (persistent_go && !persistent_go->num_p2p_clients) {
3983 /* remove empty persistent GO */
3984 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
3987 if (conncap == P2PS_SETUP_CLIENT) {
3988 wpa_msg_global(wpa_s, MSG_INFO,
3989 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3990 " status=%d conncap=%x"
3991 " adv_id=%x adv_mac=" MACSTR
3992 " session=%x mac=" MACSTR
3993 " dev_passwd_id=%d join=" MACSTR "%s",
3994 MAC2STR(dev), status, conncap,
3995 adv_id, MAC2STR(adv_mac),
3996 ses_id, MAC2STR(ses_mac),
3997 passwd_id, MAC2STR(grp_mac), feat_cap_str);
3999 wpa_msg_global(wpa_s, MSG_INFO,
4000 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4001 " status=%d conncap=%x"
4002 " adv_id=%x adv_mac=" MACSTR
4003 " session=%x mac=" MACSTR
4004 " dev_passwd_id=%d%s",
4005 MAC2STR(dev), status, conncap,
4006 adv_id, MAC2STR(adv_mac),
4007 ses_id, MAC2STR(ses_mac),
4008 passwd_id, feat_cap_str);
4013 static int _wpas_p2p_in_progress(void *ctx)
4015 struct wpa_supplicant *wpa_s = ctx;
4016 return wpas_p2p_in_progress(wpa_s);
4020 static int wpas_prov_disc_resp_cb(void *ctx)
4022 struct wpa_supplicant *wpa_s = ctx;
4023 struct wpa_ssid *persistent_go;
4025 if (!wpa_s->global->pending_p2ps_group)
4028 wpa_s->global->pending_p2ps_group = 0;
4030 if (wpas_p2p_get_go_group(wpa_s))
4032 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4034 if (persistent_go) {
4035 wpas_p2p_group_add_persistent(
4036 wpa_s, persistent_go, 0, 0, 0, 0, 0, NULL,
4037 persistent_go->mode == WPAS_MODE_P2P_GO ?
4038 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
4040 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
4047 static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4049 unsigned int *freq_list)
4051 struct wpa_supplicant *wpa_s = ctx;
4053 return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4054 WPA_IF_P2P_CLIENT, len, freq_list);
4059 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4060 * @global: Pointer to global data from wpa_supplicant_init()
4061 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4062 * Returns: 0 on success, -1 on failure
4064 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4066 struct p2p_config p2p;
4069 if (wpa_s->conf->p2p_disabled)
4072 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4078 os_memset(&p2p, 0, sizeof(p2p));
4080 p2p.debug_print = wpas_p2p_debug_print;
4081 p2p.p2p_scan = wpas_p2p_scan;
4082 p2p.send_action = wpas_send_action;
4083 p2p.send_action_done = wpas_send_action_done;
4084 p2p.go_neg_completed = wpas_go_neg_completed;
4085 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4086 p2p.dev_found = wpas_dev_found;
4087 p2p.dev_lost = wpas_dev_lost;
4088 p2p.find_stopped = wpas_find_stopped;
4089 p2p.start_listen = wpas_start_listen;
4090 p2p.stop_listen = wpas_stop_listen;
4091 p2p.send_probe_resp = wpas_send_probe_resp;
4092 p2p.sd_request = wpas_sd_request;
4093 p2p.sd_response = wpas_sd_response;
4094 p2p.prov_disc_req = wpas_prov_disc_req;
4095 p2p.prov_disc_resp = wpas_prov_disc_resp;
4096 p2p.prov_disc_fail = wpas_prov_disc_fail;
4097 p2p.invitation_process = wpas_invitation_process;
4098 p2p.invitation_received = wpas_invitation_received;
4099 p2p.invitation_result = wpas_invitation_result;
4100 p2p.get_noa = wpas_get_noa;
4101 p2p.go_connected = wpas_go_connected;
4102 p2p.presence_resp = wpas_presence_resp;
4103 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
4104 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
4105 p2p.get_persistent_group = wpas_get_persistent_group;
4106 p2p.get_go_info = wpas_get_go_info;
4107 p2p.remove_stale_groups = wpas_remove_stale_groups;
4108 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
4109 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
4110 p2p.p2ps_group_capability = p2ps_group_capability;
4111 p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
4113 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
4114 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
4115 p2p.dev_name = wpa_s->conf->device_name;
4116 p2p.manufacturer = wpa_s->conf->manufacturer;
4117 p2p.model_name = wpa_s->conf->model_name;
4118 p2p.model_number = wpa_s->conf->model_number;
4119 p2p.serial_number = wpa_s->conf->serial_number;
4121 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4122 p2p.config_methods = wpa_s->wps->config_methods;
4125 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4126 wpa_printf(MSG_ERROR,
4127 "P2P: Failed to configure supported channel list");
4131 if (wpa_s->conf->p2p_listen_reg_class &&
4132 wpa_s->conf->p2p_listen_channel) {
4133 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4134 p2p.channel = wpa_s->conf->p2p_listen_channel;
4135 p2p.channel_forced = 1;
4138 * Pick one of the social channels randomly as the listen
4141 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4142 &p2p.channel) != 0) {
4143 wpa_printf(MSG_INFO,
4144 "P2P: No social channels supported by the driver - do not enable P2P");
4147 p2p.channel_forced = 0;
4149 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4150 p2p.reg_class, p2p.channel);
4152 if (wpa_s->conf->p2p_oper_reg_class &&
4153 wpa_s->conf->p2p_oper_channel) {
4154 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4155 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
4156 p2p.cfg_op_channel = 1;
4157 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4158 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4162 * Use random operation channel from 2.4 GHz band social
4163 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4164 * other preference is indicated.
4166 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4167 &p2p.op_channel) != 0) {
4168 wpa_printf(MSG_ERROR,
4169 "P2P: Failed to select random social channel as operation channel");
4172 p2p.cfg_op_channel = 0;
4173 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4174 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4177 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4178 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4179 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4182 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4183 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4184 p2p.country[2] = 0x04;
4186 os_memcpy(p2p.country, "XX\x04", 3);
4188 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4191 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4192 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4193 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
4195 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4196 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4198 p2p.max_peers = 100;
4200 if (wpa_s->conf->p2p_ssid_postfix) {
4201 p2p.ssid_postfix_len =
4202 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4203 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4204 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4205 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4206 p2p.ssid_postfix_len);
4209 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4211 p2p.max_listen = wpa_s->max_remain_on_chan;
4213 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4214 wpa_s->conf->p2p_passphrase_len <= 63)
4215 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4217 p2p.passphrase_len = 8;
4219 global->p2p = p2p_init(&p2p);
4220 if (global->p2p == NULL)
4222 global->p2p_init_wpa_s = wpa_s;
4224 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4225 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4227 p2p_add_wps_vendor_extension(
4228 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4231 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4238 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4239 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4241 * This function deinitialize per-interface P2P data.
4243 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4245 if (wpa_s->driver && wpa_s->drv_priv)
4246 wpa_drv_probe_req_report(wpa_s, 0);
4248 if (wpa_s->go_params) {
4249 /* Clear any stored provisioning info */
4250 p2p_clear_provisioning_info(
4252 wpa_s->go_params->peer_device_addr);
4255 os_free(wpa_s->go_params);
4256 wpa_s->go_params = NULL;
4257 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4258 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4259 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4260 wpa_s->p2p_long_listen = 0;
4261 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4262 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4263 wpas_p2p_remove_pending_group_interface(wpa_s);
4264 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4265 wpas_p2p_listen_work_done(wpa_s);
4266 if (wpa_s->p2p_send_action_work) {
4267 os_free(wpa_s->p2p_send_action_work->ctx);
4268 radio_work_done(wpa_s->p2p_send_action_work);
4269 wpa_s->p2p_send_action_work = NULL;
4271 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4273 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4274 wpa_s->p2p_oob_dev_pw = NULL;
4276 os_free(wpa_s->p2p_group_common_freqs);
4277 wpa_s->p2p_group_common_freqs = NULL;
4278 wpa_s->p2p_group_common_freqs_num = 0;
4280 /* TODO: remove group interface from the driver if this wpa_s instance
4281 * is on top of a P2P group interface */
4286 * wpas_p2p_deinit_global - Deinitialize global P2P module
4287 * @global: Pointer to global data from wpa_supplicant_init()
4289 * This function deinitializes the global (per device) P2P module.
4291 static void wpas_p2p_deinit_global(struct wpa_global *global)
4293 struct wpa_supplicant *wpa_s, *tmp;
4295 wpa_s = global->ifaces;
4297 wpas_p2p_service_flush(global->p2p_init_wpa_s);
4299 /* Remove remaining P2P group interfaces */
4300 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4301 wpa_s = wpa_s->next;
4303 tmp = global->ifaces;
4306 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4311 /* Disconnect from the P2P group and deinit the interface */
4312 wpas_p2p_disconnect(tmp);
4316 * Deinit GO data on any possibly remaining interface (if main
4317 * interface is used as GO).
4319 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4320 if (wpa_s->ap_iface)
4321 wpas_p2p_group_deinit(wpa_s);
4324 p2p_deinit(global->p2p);
4326 global->p2p_init_wpa_s = NULL;
4330 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4332 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4333 wpa_s->conf->p2p_no_group_iface)
4334 return 0; /* separate interface disabled per configuration */
4335 if (wpa_s->drv_flags &
4336 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4337 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4338 return 1; /* P2P group requires a new interface in every case
4340 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4341 return 0; /* driver does not support concurrent operations */
4342 if (wpa_s->global->ifaces->next)
4343 return 1; /* more that one interface already in use */
4344 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4345 return 1; /* this interface is already in use */
4350 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4351 const u8 *peer_addr,
4352 enum p2p_wps_method wps_method,
4353 int go_intent, const u8 *own_interface_addr,
4354 unsigned int force_freq, int persistent_group,
4355 struct wpa_ssid *ssid, unsigned int pref_freq)
4357 if (persistent_group && wpa_s->conf->persistent_reconnect)
4358 persistent_group = 2;
4361 * Increase GO config timeout if HT40 is used since it takes some time
4362 * to scan channels for coex purposes before the BSS can be started.
4364 p2p_set_config_timeout(wpa_s->global->p2p,
4365 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4367 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4368 go_intent, own_interface_addr, force_freq,
4369 persistent_group, ssid ? ssid->ssid : NULL,
4370 ssid ? ssid->ssid_len : 0,
4371 wpa_s->p2p_pd_before_go_neg, pref_freq,
4372 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4377 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4378 const u8 *peer_addr,
4379 enum p2p_wps_method wps_method,
4380 int go_intent, const u8 *own_interface_addr,
4381 unsigned int force_freq, int persistent_group,
4382 struct wpa_ssid *ssid, unsigned int pref_freq)
4384 if (persistent_group && wpa_s->conf->persistent_reconnect)
4385 persistent_group = 2;
4387 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4388 go_intent, own_interface_addr, force_freq,
4389 persistent_group, ssid ? ssid->ssid : NULL,
4390 ssid ? ssid->ssid_len : 0, pref_freq,
4391 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4396 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4398 wpa_s->p2p_join_scan_count++;
4399 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4400 wpa_s->p2p_join_scan_count);
4401 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4402 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4403 " for join operationg - stop join attempt",
4404 MAC2STR(wpa_s->pending_join_iface_addr));
4405 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4406 if (wpa_s->p2p_auto_pd) {
4407 wpa_s->p2p_auto_pd = 0;
4408 wpa_msg_global(wpa_s, MSG_INFO,
4409 P2P_EVENT_PROV_DISC_FAILURE
4410 " p2p_dev_addr=" MACSTR " status=N/A",
4411 MAC2STR(wpa_s->pending_join_dev_addr));
4414 wpa_msg_global(wpa_s->parent, MSG_INFO,
4415 P2P_EVENT_GROUP_FORMATION_FAILURE);
4416 wpas_notify_p2p_group_formation_failure(wpa_s, "");
4421 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4424 unsigned int num, i;
4425 struct wpa_used_freq_data *freqs;
4427 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4428 /* Multiple channels are supported and not all are in use */
4432 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4433 sizeof(struct wpa_used_freq_data));
4437 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4438 wpa_s->num_multichan_concurrent);
4440 for (i = 0; i < num; i++) {
4441 if (freqs[i].freq == freq) {
4442 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4449 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4458 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4459 const u8 *peer_dev_addr)
4461 struct wpa_bss *bss;
4464 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4467 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4468 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4473 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4475 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4476 "%ld.%06ld (%supdated in last scan)",
4477 bss->last_update.sec, bss->last_update.usec,
4478 updated ? "": "not ");
4484 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4485 struct wpa_scan_results *scan_res)
4487 struct wpa_bss *bss = NULL;
4489 u8 iface_addr[ETH_ALEN];
4491 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4493 if (wpa_s->global->p2p_disabled)
4496 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4497 scan_res ? (int) scan_res->num : -1,
4498 wpa_s->p2p_auto_join ? "auto_" : "");
4501 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4503 if (wpa_s->p2p_auto_pd) {
4504 int join = wpas_p2p_peer_go(wpa_s,
4505 wpa_s->pending_join_dev_addr);
4507 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4508 wpa_s->auto_pd_scan_retry++;
4509 bss = wpa_bss_get_bssid_latest(
4510 wpa_s, wpa_s->pending_join_dev_addr);
4513 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4514 "the peer " MACSTR " at %d MHz",
4515 wpa_s->auto_pd_scan_retry,
4517 pending_join_dev_addr),
4519 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4527 wpa_s->p2p_auto_pd = 0;
4528 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4529 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4530 MAC2STR(wpa_s->pending_join_dev_addr), join);
4531 if (p2p_prov_disc_req(wpa_s->global->p2p,
4532 wpa_s->pending_join_dev_addr, NULL,
4533 wpa_s->pending_pd_config_methods, join,
4534 0, wpa_s->user_initiated_pd) < 0) {
4535 wpa_s->p2p_auto_pd = 0;
4536 wpa_msg_global(wpa_s, MSG_INFO,
4537 P2P_EVENT_PROV_DISC_FAILURE
4538 " p2p_dev_addr=" MACSTR " status=N/A",
4539 MAC2STR(wpa_s->pending_join_dev_addr));
4544 if (wpa_s->p2p_auto_join) {
4545 int join = wpas_p2p_peer_go(wpa_s,
4546 wpa_s->pending_join_dev_addr);
4548 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4549 "running a GO -> use GO Negotiation");
4550 wpa_msg_global(wpa_s->parent, MSG_INFO,
4551 P2P_EVENT_FALLBACK_TO_GO_NEG
4552 "reason=peer-not-running-GO");
4553 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4554 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4555 wpa_s->p2p_persistent_group, 0, 0, 0,
4556 wpa_s->p2p_go_intent,
4557 wpa_s->p2p_connect_freq,
4558 wpa_s->p2p_persistent_id,
4559 wpa_s->p2p_pd_before_go_neg,
4565 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4566 "try to join the group", join ? "" :
4569 wpa_msg_global(wpa_s->parent, MSG_INFO,
4570 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4571 wpa_s->p2p_fallback_to_go_neg = 1;
4575 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4576 wpa_s->pending_join_iface_addr);
4578 p2p_get_interface_addr(wpa_s->global->p2p,
4579 wpa_s->pending_join_dev_addr,
4581 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4582 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4583 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4584 "address for join from " MACSTR " to " MACSTR
4585 " based on newly discovered P2P peer entry",
4586 MAC2STR(wpa_s->pending_join_iface_addr),
4587 MAC2STR(iface_addr));
4588 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4591 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4592 wpa_s->pending_join_iface_addr);
4595 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4596 "from P2P peer table: %d MHz", freq);
4598 if (wpa_s->p2p_join_ssid_len) {
4599 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4600 MACSTR " and SSID %s",
4601 MAC2STR(wpa_s->pending_join_iface_addr),
4602 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4603 wpa_s->p2p_join_ssid_len));
4604 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4605 wpa_s->p2p_join_ssid,
4606 wpa_s->p2p_join_ssid_len);
4609 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4610 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4611 bss = wpa_bss_get_bssid_latest(wpa_s,
4612 wpa_s->pending_join_iface_addr);
4615 u8 dev_addr[ETH_ALEN];
4618 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4619 "from BSS table: %d MHz (SSID %s)", freq,
4620 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4621 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4623 os_memcmp(wpa_s->pending_join_dev_addr,
4624 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4625 os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4627 wpa_printf(MSG_DEBUG,
4628 "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4630 MAC2STR(wpa_s->pending_join_dev_addr));
4631 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4638 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4639 wpa_msg_global(wpa_s->parent, MSG_INFO,
4640 P2P_EVENT_GROUP_FORMATION_FAILURE
4641 "reason=FREQ_CONFLICT");
4642 wpas_notify_p2p_group_formation_failure(
4643 wpa_s, "FREQ_CONFLICT");
4647 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4648 "prior to joining an existing group (GO " MACSTR
4650 MAC2STR(wpa_s->pending_join_dev_addr), freq);
4651 wpa_s->pending_pd_before_join = 1;
4653 switch (wpa_s->pending_join_wps_method) {
4654 case WPS_PIN_DISPLAY:
4655 method = WPS_CONFIG_KEYPAD;
4657 case WPS_PIN_KEYPAD:
4658 method = WPS_CONFIG_DISPLAY;
4661 method = WPS_CONFIG_PUSHBUTTON;
4664 method = WPS_CONFIG_P2PS;
4671 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4672 wpa_s->pending_join_dev_addr) ==
4675 * We have already performed provision discovery for
4676 * joining the group. Proceed directly to join
4677 * operation without duplicated provision discovery. */
4678 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4679 "with " MACSTR " already done - proceed to "
4681 MAC2STR(wpa_s->pending_join_dev_addr));
4682 wpa_s->pending_pd_before_join = 0;
4686 if (p2p_prov_disc_req(wpa_s->global->p2p,
4687 wpa_s->pending_join_dev_addr,
4689 freq, wpa_s->user_initiated_pd) < 0) {
4690 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4691 "Discovery Request before joining an "
4693 wpa_s->pending_pd_before_join = 0;
4699 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4700 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4701 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4702 wpas_p2p_check_join_scan_limit(wpa_s);
4706 /* Start join operation immediately */
4707 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
4711 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4712 const u8 *ssid, size_t ssid_len)
4715 struct wpa_driver_scan_params params;
4716 struct wpabuf *wps_ie, *ies;
4718 int freqs[2] = { 0, 0 };
4720 os_memset(¶ms, 0, sizeof(params));
4722 /* P2P Wildcard SSID */
4723 params.num_ssids = 1;
4724 if (ssid && ssid_len) {
4725 params.ssids[0].ssid = ssid;
4726 params.ssids[0].ssid_len = ssid_len;
4727 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4728 wpa_s->p2p_join_ssid_len = ssid_len;
4730 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4731 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4732 wpa_s->p2p_join_ssid_len = 0;
4735 wpa_s->wps->dev.p2p = 1;
4736 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4737 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4739 if (wps_ie == NULL) {
4740 wpas_p2p_scan_res_join(wpa_s, NULL);
4744 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4745 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4747 wpabuf_free(wps_ie);
4748 wpas_p2p_scan_res_join(wpa_s, NULL);
4751 wpabuf_put_buf(ies, wps_ie);
4752 wpabuf_free(wps_ie);
4754 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4756 params.p2p_probe = 1;
4757 params.extra_ies = wpabuf_head(ies);
4758 params.extra_ies_len = wpabuf_len(ies);
4763 * If freq is not provided, check the operating freq of the GO
4764 * and use a single channel scan on if possible.
4766 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4767 wpa_s->pending_join_iface_addr);
4773 params.freqs = freqs;
4777 * Run a scan to update BSS table and start Provision Discovery once
4778 * the new scan results become available.
4780 ret = wpa_drv_scan(wpa_s, ¶ms);
4782 os_get_reltime(&wpa_s->scan_trigger_time);
4783 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
4784 wpa_s->own_scan_requested = 1;
4790 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4792 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4793 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4794 wpas_p2p_check_join_scan_limit(wpa_s);
4799 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4801 struct wpa_supplicant *wpa_s = eloop_ctx;
4802 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
4806 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
4807 const u8 *dev_addr, enum p2p_wps_method wps_method,
4808 int auto_join, int op_freq,
4809 const u8 *ssid, size_t ssid_len)
4811 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
4812 MACSTR " dev " MACSTR " op_freq=%d)%s",
4813 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
4814 auto_join ? " (auto_join)" : "");
4815 if (ssid && ssid_len) {
4816 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4817 wpa_ssid_txt(ssid, ssid_len));
4820 wpa_s->p2p_auto_pd = 0;
4821 wpa_s->p2p_auto_join = !!auto_join;
4822 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4823 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4824 wpa_s->pending_join_wps_method = wps_method;
4826 /* Make sure we are not running find during connection establishment */
4827 wpas_p2p_stop_find(wpa_s);
4829 wpa_s->p2p_join_scan_count = 0;
4830 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
4835 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4836 const u8 *ssid, size_t ssid_len)
4838 struct wpa_supplicant *group;
4839 struct p2p_go_neg_results res;
4840 struct wpa_bss *bss;
4842 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4845 if (group != wpa_s) {
4846 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4847 sizeof(group->p2p_pin));
4848 group->p2p_wps_method = wpa_s->p2p_wps_method;
4851 * Need to mark the current interface for p2p_group_formation
4852 * when a separate group interface is not used. This is needed
4853 * to allow p2p_cancel stop a pending p2p_connect-join.
4854 * wpas_p2p_init_group_interface() addresses this for the case
4855 * where a separate group interface is used.
4857 wpa_s->global->p2p_group_formation = wpa_s;
4860 group->p2p_in_provisioning = 1;
4861 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
4863 os_memset(&res, 0, sizeof(res));
4864 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
4865 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4867 res.wps_method = wpa_s->pending_join_wps_method;
4868 if (freq && ssid && ssid_len) {
4870 res.ssid_len = ssid_len;
4871 os_memcpy(res.ssid, ssid, ssid_len);
4873 bss = wpa_bss_get_bssid_latest(wpa_s,
4874 wpa_s->pending_join_iface_addr);
4876 res.freq = bss->freq;
4877 res.ssid_len = bss->ssid_len;
4878 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4879 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4881 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4885 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4886 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4888 wpa_drv_cancel_remain_on_channel(wpa_s);
4889 wpa_s->off_channel_freq = 0;
4890 wpa_s->roc_waiting_drv_freq = 0;
4892 wpas_start_wps_enrollee(group, &res);
4895 * Allow a longer timeout for join-a-running-group than normal 15
4896 * second group formation timeout since the GO may not have authorized
4897 * our connection yet.
4899 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4900 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4907 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
4908 int *force_freq, int *pref_freq, int go,
4909 unsigned int *pref_freq_list,
4910 unsigned int *num_pref_freq)
4912 struct wpa_used_freq_data *freqs;
4913 int res, best_freq, num_unused;
4914 unsigned int freq_in_use = 0, num, i, max_pref_freq;
4916 max_pref_freq = *num_pref_freq;
4919 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4920 sizeof(struct wpa_used_freq_data));
4924 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4925 wpa_s->num_multichan_concurrent);
4928 * It is possible that the total number of used frequencies is bigger
4929 * than the number of frequencies used for P2P, so get the system wide
4930 * number of unused frequencies.
4932 num_unused = wpas_p2p_num_unused_channels(wpa_s);
4934 wpa_printf(MSG_DEBUG,
4935 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4936 freq, wpa_s->num_multichan_concurrent, num, num_unused);
4941 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4943 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4945 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
4946 ieee80211_is_dfs(freq)) {
4948 * If freq is a DFS channel and DFS is offloaded
4949 * to the driver, allow P2P GO to use it.
4951 wpa_printf(MSG_DEBUG,
4952 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
4955 wpa_printf(MSG_DEBUG,
4956 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
4963 for (i = 0; i < num; i++) {
4964 if (freqs[i].freq == freq)
4968 if (num_unused <= 0 && !freq_in_use) {
4969 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4974 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
4975 "requested channel (%u MHz)", freq);
4980 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
4982 if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
4983 enum wpa_driver_if_type iface_type;
4986 iface_type = WPA_IF_P2P_GO;
4988 iface_type = WPA_IF_P2P_CLIENT;
4990 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
4993 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
4996 if (!res && max_pref_freq > 0) {
4997 *num_pref_freq = max_pref_freq;
4999 while (wpas_p2p_disallowed_freq(wpa_s->global,
5000 pref_freq_list[i]) &&
5001 i < *num_pref_freq) {
5002 wpa_printf(MSG_DEBUG,
5003 "P2P: preferred_freq_list[%d]=%d is disallowed",
5004 i, pref_freq_list[i]);
5007 if (i != *num_pref_freq) {
5008 best_freq = pref_freq_list[i];
5009 wpa_printf(MSG_DEBUG,
5010 "P2P: Using preferred_freq_list[%d]=%d",
5013 wpa_printf(MSG_DEBUG,
5014 "P2P: All driver preferred frequencies are disallowed for P2P use");
5018 wpa_printf(MSG_DEBUG,
5019 "P2P: No preferred frequency list available");
5023 /* We have a candidate frequency to use */
5024 if (best_freq > 0) {
5025 if (*pref_freq == 0 && num_unused > 0) {
5026 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5028 *pref_freq = best_freq;
5030 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5032 *force_freq = best_freq;
5034 } else if (num_unused > 0) {
5035 wpa_printf(MSG_DEBUG,
5036 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5039 wpa_printf(MSG_DEBUG,
5040 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5054 * wpas_p2p_connect - Request P2P Group Formation to be started
5055 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5056 * @peer_addr: Address of the peer P2P Device
5057 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5058 * @persistent_group: Whether to create a persistent group
5059 * @auto_join: Whether to select join vs. GO Negotiation automatically
5060 * @join: Whether to join an existing group (as a client) instead of starting
5061 * Group Owner negotiation; @peer_addr is BSSID in that case
5062 * @auth: Whether to only authorize the connection instead of doing that and
5063 * initiating Group Owner negotiation
5064 * @go_intent: GO Intent or -1 to use default
5065 * @freq: Frequency for the group or 0 for auto-selection
5066 * @persistent_id: Persistent group credentials to use for forcing GO
5067 * parameters or -1 to generate new values (SSID/passphrase)
5068 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5069 * interoperability workaround when initiating group formation
5070 * @ht40: Start GO with 40 MHz channel width
5071 * @vht: Start GO with VHT support
5072 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5073 * failure, -2 on failure due to channel not currently available,
5074 * -3 if forced channel is not supported
5076 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5077 const char *pin, enum p2p_wps_method wps_method,
5078 int persistent_group, int auto_join, int join, int auth,
5079 int go_intent, int freq, int persistent_id, int pd,
5082 int force_freq = 0, pref_freq = 0;
5084 enum wpa_driver_if_type iftype;
5086 struct wpa_ssid *ssid = NULL;
5087 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
5089 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5092 if (persistent_id >= 0) {
5093 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5094 if (ssid == NULL || ssid->disabled != 2 ||
5095 ssid->mode != WPAS_MODE_P2P_GO)
5099 os_free(wpa_s->global->add_psk);
5100 wpa_s->global->add_psk = NULL;
5102 wpa_s->global->p2p_fail_on_wps_complete = 0;
5103 wpa_s->global->pending_p2ps_group = 0;
5104 wpa_s->p2ps_method_config_any = 0;
5107 go_intent = wpa_s->conf->p2p_go_intent;
5110 wpa_s->p2p_long_listen = 0;
5112 wpa_s->p2p_wps_method = wps_method;
5113 wpa_s->p2p_persistent_group = !!persistent_group;
5114 wpa_s->p2p_persistent_id = persistent_id;
5115 wpa_s->p2p_go_intent = go_intent;
5116 wpa_s->p2p_connect_freq = freq;
5117 wpa_s->p2p_fallback_to_go_neg = 0;
5118 wpa_s->p2p_pd_before_go_neg = !!pd;
5119 wpa_s->p2p_go_ht40 = !!ht40;
5120 wpa_s->p2p_go_vht = !!vht;
5123 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5124 else if (wps_method == WPS_PIN_DISPLAY) {
5125 ret = wps_generate_pin();
5126 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5128 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5129 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
5130 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5133 wpa_s->p2p_pin[0] = '\0';
5135 if (join || auto_join) {
5136 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
5138 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5139 "connect a running group from " MACSTR,
5140 MAC2STR(peer_addr));
5141 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5144 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
5145 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
5147 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
5148 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5152 os_get_reltime(&wpa_s->p2p_auto_started);
5153 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5155 wpa_s->p2p_auto_started.sec,
5156 wpa_s->p2p_auto_started.usec);
5158 wpa_s->user_initiated_pd = 1;
5159 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
5160 auto_join, freq, NULL, 0) < 0)
5165 size = P2P_MAX_PREF_CHANNELS;
5166 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5167 go_intent == 15, pref_freq_list, &size);
5170 wpas_p2p_set_own_freq_preference(wpa_s,
5171 force_freq ? force_freq : pref_freq);
5173 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5175 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5177 if (wpa_s->create_p2p_iface) {
5178 /* Prepare to add a new interface for the group */
5179 iftype = WPA_IF_P2P_GROUP;
5180 if (go_intent == 15)
5181 iftype = WPA_IF_P2P_GO;
5182 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5183 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5184 "interface for the group");
5188 if_addr = wpa_s->pending_interface_addr;
5190 if_addr = wpa_s->own_addr;
5191 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5195 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
5197 force_freq, persistent_group, ssid,
5203 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5204 go_intent, if_addr, force_freq,
5205 persistent_group, ssid, pref_freq) < 0) {
5206 if (wpa_s->create_p2p_iface)
5207 wpas_p2p_remove_pending_group_interface(wpa_s);
5215 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5216 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5217 * @freq: Frequency of the channel in MHz
5218 * @duration: Duration of the stay on the channel in milliseconds
5220 * This callback is called when the driver indicates that it has started the
5221 * requested remain-on-channel duration.
5223 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5224 unsigned int freq, unsigned int duration)
5226 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5228 wpa_printf(MSG_DEBUG, "P2P: remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u duration=%u)",
5229 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5230 wpa_s->roc_waiting_drv_freq, freq, duration);
5231 if (wpa_s->off_channel_freq &&
5232 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
5233 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5234 wpa_s->pending_listen_duration);
5235 wpa_s->pending_listen_freq = 0;
5237 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5238 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5244 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
5246 /* Limit maximum Listen state time based on driver limitation. */
5247 if (timeout > wpa_s->max_remain_on_chan)
5248 timeout = wpa_s->max_remain_on_chan;
5250 return p2p_listen(wpa_s->global->p2p, timeout);
5255 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5256 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5257 * @freq: Frequency of the channel in MHz
5259 * This callback is called when the driver indicates that a remain-on-channel
5260 * operation has been completed, i.e., the duration on the requested channel
5263 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5266 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
5267 "(p2p_long_listen=%d ms pending_action_tx=%p)",
5268 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
5269 wpas_p2p_listen_work_done(wpa_s);
5270 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5272 if (wpa_s->p2p_long_listen > 0)
5273 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
5274 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5275 return; /* P2P module started a new operation */
5276 if (offchannel_pending_action_tx(wpa_s))
5278 if (wpa_s->p2p_long_listen > 0) {
5279 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
5280 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5283 * When listen duration is over, stop listen & update p2p_state
5286 p2p_stop_listen(wpa_s->global->p2p);
5292 * wpas_p2p_group_remove - Remove a P2P group
5293 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5294 * @ifname: Network interface name of the group interface or "*" to remove all
5296 * Returns: 0 on success, -1 on failure
5298 * This function is used to remove a P2P group. This can be used to disconnect
5299 * from a group in which the local end is a P2P Client or to end a P2P Group in
5300 * case the local end is the Group Owner. If a virtual network interface was
5301 * created for this group, that interface will be removed. Otherwise, only the
5302 * configured P2P group network will be removed from the interface.
5304 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5306 struct wpa_global *global = wpa_s->global;
5307 struct wpa_supplicant *calling_wpa_s = wpa_s;
5309 if (os_strcmp(ifname, "*") == 0) {
5310 struct wpa_supplicant *prev;
5311 wpa_s = global->ifaces;
5314 wpa_s = wpa_s->next;
5315 if (prev->p2p_group_interface !=
5316 NOT_P2P_GROUP_INTERFACE ||
5317 (prev->current_ssid &&
5318 prev->current_ssid->p2p_group))
5319 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5324 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5325 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5329 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5333 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5337 if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5338 unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5339 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5342 res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5343 &size, pref_freq_list);
5344 if (!res && size > 0) {
5346 while (wpas_p2p_disallowed_freq(wpa_s->global,
5347 pref_freq_list[i]) &&
5349 wpa_printf(MSG_DEBUG,
5350 "P2P: preferred_freq_list[%d]=%d is disallowed",
5351 i, pref_freq_list[i]);
5355 freq = pref_freq_list[i];
5356 wpa_printf(MSG_DEBUG,
5357 "P2P: Using preferred_freq_list[%d]=%d",
5360 wpa_printf(MSG_DEBUG,
5361 "P2P: All driver preferred frequencies are disallowed for P2P use");
5364 wpa_printf(MSG_DEBUG,
5365 "P2P: No preferred frequency list available");
5370 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5372 if (wpa_s->best_24_freq > 0 &&
5373 p2p_supported_freq_go(wpa_s->global->p2p,
5374 wpa_s->best_24_freq)) {
5375 freq = wpa_s->best_24_freq;
5376 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5377 "channel: %d MHz", freq);
5379 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5381 freq = 2412 + (r % 3) * 25;
5382 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5383 "channel: %d MHz", freq);
5388 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5390 if (wpa_s->best_5_freq > 0 &&
5391 p2p_supported_freq_go(wpa_s->global->p2p,
5392 wpa_s->best_5_freq)) {
5393 freq = wpa_s->best_5_freq;
5394 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5395 "channel: %d MHz", freq);
5397 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5399 freq = 5180 + (r % 4) * 20;
5400 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5401 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5402 "5 GHz channel for P2P group");
5405 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5406 "channel: %d MHz", freq);
5410 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5411 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5412 ieee80211_is_dfs(freq)) {
5414 * If freq is a DFS channel and DFS is offloaded to the
5415 * driver, allow P2P GO to use it.
5417 wpa_printf(MSG_DEBUG, "P2P: "
5418 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5422 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5423 "(%u MHz) is not supported for P2P uses",
5432 static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5433 const struct p2p_channels *channels,
5436 if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5437 p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5438 freq_included(wpa_s, channels, freq))
5444 static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5445 struct p2p_go_neg_results *params,
5446 const struct p2p_channels *channels)
5450 /* first try some random selection of the social channels */
5451 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5454 for (i = 0; i < 3; i++) {
5455 params->freq = 2412 + ((r + i) % 3) * 25;
5456 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5460 /* try all other channels in operating class 81 */
5461 for (i = 0; i < 11; i++) {
5462 params->freq = 2412 + i * 5;
5464 /* skip social channels; covered in the previous loop */
5465 if (params->freq == 2412 ||
5466 params->freq == 2437 ||
5467 params->freq == 2462)
5470 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5474 /* try all channels in operating class 115 */
5475 for (i = 0; i < 4; i++) {
5476 params->freq = 5180 + i * 20;
5477 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5478 freq_included(wpa_s, channels, params->freq) &&
5479 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5483 /* try all channels in operating class 124 */
5484 for (i = 0; i < 4; i++) {
5485 params->freq = 5745 + i * 20;
5486 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5487 freq_included(wpa_s, channels, params->freq) &&
5488 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5492 /* try social channel class 180 channel 2 */
5493 params->freq = 58320 + 1 * 2160;
5494 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5495 freq_included(wpa_s, channels, params->freq) &&
5496 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5499 /* try all channels in reg. class 180 */
5500 for (i = 0; i < 4; i++) {
5501 params->freq = 58320 + i * 2160;
5502 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5503 freq_included(wpa_s, channels, params->freq) &&
5504 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5509 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5512 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5517 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5518 struct p2p_go_neg_results *params,
5519 int freq, int ht40, int vht,
5520 const struct p2p_channels *channels)
5522 struct wpa_used_freq_data *freqs;
5524 unsigned int num, i;
5526 os_memset(params, 0, sizeof(*params));
5527 params->role_go = 1;
5528 params->ht40 = ht40;
5531 if (wpa_s->p2p_group_common_freqs_num)
5532 wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5535 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5536 sizeof(struct wpa_used_freq_data));
5540 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5541 wpa_s->num_multichan_concurrent);
5543 /* try using the forced freq */
5545 if (!wpas_p2p_supported_freq_go(wpa_s, channels, freq)) {
5546 wpa_printf(MSG_DEBUG,
5547 "P2P: Forced GO freq %d MHz not accepted",
5552 for (i = 0; i < num; i++) {
5553 if (freqs[i].freq == freq) {
5554 wpa_printf(MSG_DEBUG,
5555 "P2P: forced freq (%d MHz) is also shared",
5557 params->freq = freq;
5562 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5563 wpa_printf(MSG_DEBUG,
5564 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5569 wpa_printf(MSG_DEBUG,
5570 "P2P: force GO freq (%d MHz) on a free channel",
5572 params->freq = freq;
5576 /* consider using one of the shared frequencies */
5578 cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5579 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5580 wpa_printf(MSG_DEBUG,
5581 "P2P: Use shared freq (%d MHz) for GO",
5583 params->freq = cand;
5587 /* try using one of the shared freqs */
5588 for (i = 0; i < num; i++) {
5589 if (wpas_p2p_supported_freq_go(wpa_s, channels,
5591 wpa_printf(MSG_DEBUG,
5592 "P2P: Use shared freq (%d MHz) for GO",
5594 params->freq = freqs[i].freq;
5600 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5601 wpa_printf(MSG_DEBUG,
5602 "P2P: Cannot force GO on any of the channels we are already using");
5606 /* try using the setting from the configuration file */
5607 if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5608 wpa_s->conf->p2p_oper_channel >= 1 &&
5609 wpa_s->conf->p2p_oper_channel <= 11 &&
5610 wpas_p2p_supported_freq_go(
5612 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5613 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5614 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5615 "frequency %d MHz", params->freq);
5619 if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5620 wpa_s->conf->p2p_oper_reg_class == 116 ||
5621 wpa_s->conf->p2p_oper_reg_class == 117 ||
5622 wpa_s->conf->p2p_oper_reg_class == 124 ||
5623 wpa_s->conf->p2p_oper_reg_class == 125 ||
5624 wpa_s->conf->p2p_oper_reg_class == 126 ||
5625 wpa_s->conf->p2p_oper_reg_class == 127) &&
5626 wpas_p2p_supported_freq_go(wpa_s, channels,
5628 5 * wpa_s->conf->p2p_oper_channel)) {
5629 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5630 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5631 "frequency %d MHz", params->freq);
5635 /* Try using best channels */
5636 if (wpa_s->conf->p2p_oper_channel == 0 &&
5637 wpa_s->best_overall_freq > 0 &&
5638 wpas_p2p_supported_freq_go(wpa_s, channels,
5639 wpa_s->best_overall_freq)) {
5640 params->freq = wpa_s->best_overall_freq;
5641 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5642 "channel %d MHz", params->freq);
5646 if (wpa_s->conf->p2p_oper_channel == 0 &&
5647 wpa_s->best_24_freq > 0 &&
5648 wpas_p2p_supported_freq_go(wpa_s, channels,
5649 wpa_s->best_24_freq)) {
5650 params->freq = wpa_s->best_24_freq;
5651 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5652 "channel %d MHz", params->freq);
5656 if (wpa_s->conf->p2p_oper_channel == 0 &&
5657 wpa_s->best_5_freq > 0 &&
5658 wpas_p2p_supported_freq_go(wpa_s, channels,
5659 wpa_s->best_5_freq)) {
5660 params->freq = wpa_s->best_5_freq;
5661 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5662 "channel %d MHz", params->freq);
5666 /* try using preferred channels */
5667 cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
5668 if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5669 params->freq = cand;
5670 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5671 "channels", params->freq);
5675 /* Try using one of the group common freqs */
5676 if (wpa_s->p2p_group_common_freqs) {
5677 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
5678 cand = wpa_s->p2p_group_common_freqs[i];
5679 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5680 params->freq = cand;
5681 wpa_printf(MSG_DEBUG,
5682 "P2P: Use freq %d MHz common with the peer",
5689 /* no preference, select some channel */
5690 wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
5692 if (params->freq == 0) {
5693 wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
5706 static struct wpa_supplicant *
5707 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5710 struct wpa_supplicant *group_wpa_s;
5712 if (!wpas_p2p_create_iface(wpa_s)) {
5713 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5715 wpa_s->p2p_first_connection_timeout = 0;
5719 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
5720 WPA_IF_P2P_CLIENT) < 0) {
5721 wpa_msg_global(wpa_s, MSG_ERROR,
5722 "P2P: Failed to add group interface");
5725 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5726 if (group_wpa_s == NULL) {
5727 wpa_msg_global(wpa_s, MSG_ERROR,
5728 "P2P: Failed to initialize group interface");
5729 wpas_p2p_remove_pending_group_interface(wpa_s);
5733 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5734 group_wpa_s->ifname);
5735 group_wpa_s->p2p_first_connection_timeout = 0;
5741 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5742 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5743 * @persistent_group: Whether to create a persistent group
5744 * @freq: Frequency for the group or 0 to indicate no hardcoding
5745 * @ht40: Start GO with 40 MHz channel width
5746 * @vht: Start GO with VHT support
5747 * Returns: 0 on success, -1 on failure
5749 * This function creates a new P2P group with the local end as the Group Owner,
5750 * i.e., without using Group Owner Negotiation.
5752 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
5753 int freq, int ht40, int vht)
5755 struct p2p_go_neg_results params;
5757 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5760 os_free(wpa_s->global->add_psk);
5761 wpa_s->global->add_psk = NULL;
5763 /* Make sure we are not running find during connection establishment */
5764 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
5765 wpas_p2p_stop_find_oper(wpa_s);
5767 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5771 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, NULL))
5774 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
5775 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5776 ieee80211_is_dfs(params.freq)) {
5778 * If freq is a DFS channel and DFS is offloaded to the
5779 * driver, allow P2P GO to use it.
5781 wpa_printf(MSG_DEBUG,
5782 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
5783 __func__, params.freq);
5785 wpa_printf(MSG_DEBUG,
5786 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
5791 p2p_go_params(wpa_s->global->p2p, ¶ms);
5792 params.persistent_group = persistent_group;
5794 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5797 wpas_start_wps_go(wpa_s, ¶ms, 0);
5803 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
5804 struct wpa_ssid *params, int addr_allocated,
5805 int freq, int force_scan)
5807 struct wpa_ssid *ssid;
5809 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5813 os_get_reltime(&wpa_s->scan_min_time);
5814 wpa_s->p2p_last_4way_hs_fail = NULL;
5816 wpa_supplicant_ap_deinit(wpa_s);
5818 ssid = wpa_config_add_network(wpa_s->conf);
5821 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5822 wpa_config_set_network_defaults(ssid);
5823 ssid->temporary = 1;
5824 ssid->proto = WPA_PROTO_RSN;
5825 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5826 ssid->group_cipher = WPA_CIPHER_CCMP;
5827 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5828 ssid->ssid = os_malloc(params->ssid_len);
5829 if (ssid->ssid == NULL) {
5830 wpa_config_remove_network(wpa_s->conf, ssid->id);
5833 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5834 ssid->ssid_len = params->ssid_len;
5835 ssid->p2p_group = 1;
5836 ssid->export_keys = 1;
5837 if (params->psk_set) {
5838 os_memcpy(ssid->psk, params->psk, 32);
5841 if (params->passphrase)
5842 ssid->passphrase = os_strdup(params->passphrase);
5844 wpa_s->show_group_started = 1;
5845 wpa_s->p2p_in_invitation = 1;
5846 wpa_s->p2p_invite_go_freq = freq;
5848 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5850 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5851 wpas_p2p_group_formation_timeout,
5852 wpa_s->parent, NULL);
5853 wpa_supplicant_select_network(wpa_s, ssid);
5859 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5860 struct wpa_ssid *ssid, int addr_allocated,
5861 int force_freq, int neg_freq, int ht40,
5862 int vht, const struct p2p_channels *channels,
5863 int connection_timeout, int force_scan)
5865 struct p2p_go_neg_results params;
5868 if (ssid->disabled != 2 || ssid->ssid == NULL)
5871 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5872 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5873 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5876 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5877 wpa_s->parent, NULL)) {
5879 * This can happen if Invitation Response frame was lost
5880 * and the peer (GO of a persistent group) tries to
5881 * invite us again. Reschedule the timeout to avoid
5882 * terminating the wait for the connection too early
5883 * since we now know that the peer is still trying to
5884 * invite us instead of having already started the GO.
5886 wpa_printf(MSG_DEBUG,
5887 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
5888 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5889 wpas_p2p_group_formation_timeout,
5890 wpa_s->parent, NULL);
5895 os_free(wpa_s->global->add_psk);
5896 wpa_s->global->add_psk = NULL;
5898 /* Make sure we are not running find during connection establishment */
5899 wpas_p2p_stop_find_oper(wpa_s);
5901 wpa_s->p2p_fallback_to_go_neg = 0;
5903 if (ssid->mode == WPAS_MODE_P2P_GO) {
5904 if (force_freq > 0) {
5905 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
5909 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
5911 (freq > 0 && !freq_included(wpa_s, channels, freq)))
5914 } else if (ssid->mode == WPAS_MODE_INFRA) {
5916 if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
5917 struct os_reltime now;
5918 struct wpa_bss *bss =
5919 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
5921 os_get_reltime(&now);
5923 !os_reltime_expired(&now, &bss->last_update, 5) &&
5924 freq_included(wpa_s, channels, bss->freq))
5930 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
5936 if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, channels))
5940 params.psk_set = ssid->psk_set;
5942 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
5943 if (ssid->passphrase) {
5944 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
5945 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
5946 "persistent group");
5949 os_strlcpy(params.passphrase, ssid->passphrase,
5950 sizeof(params.passphrase));
5952 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
5953 params.ssid_len = ssid->ssid_len;
5954 params.persistent_group = 1;
5956 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
5960 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
5962 wpa_s->p2p_first_connection_timeout = connection_timeout;
5963 wpas_start_wps_go(wpa_s, ¶ms, 0);
5969 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
5970 struct wpabuf *proberesp_ies)
5972 struct wpa_supplicant *wpa_s = ctx;
5973 if (wpa_s->ap_iface) {
5974 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
5975 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
5976 wpabuf_free(beacon_ies);
5977 wpabuf_free(proberesp_ies);
5981 wpabuf_free(hapd->p2p_beacon_ie);
5982 hapd->p2p_beacon_ie = beacon_ies;
5984 wpabuf_free(hapd->p2p_probe_resp_ie);
5985 hapd->p2p_probe_resp_ie = proberesp_ies;
5987 wpabuf_free(beacon_ies);
5988 wpabuf_free(proberesp_ies);
5990 wpa_supplicant_ap_update_beacon(wpa_s);
5994 static void wpas_p2p_idle_update(void *ctx, int idle)
5996 struct wpa_supplicant *wpa_s = ctx;
5997 if (!wpa_s->ap_iface)
5999 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
6001 if (wpa_s->global->p2p_fail_on_wps_complete &&
6002 wpa_s->p2p_in_provisioning) {
6003 wpas_p2p_grpform_fail_after_wps(wpa_s);
6006 wpas_p2p_set_group_idle_timeout(wpa_s);
6008 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6012 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6013 struct wpa_ssid *ssid)
6015 struct p2p_group *group;
6016 struct p2p_group_config *cfg;
6018 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6021 cfg = os_zalloc(sizeof(*cfg));
6025 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
6026 cfg->persistent_group = 2;
6027 else if (ssid->p2p_persistent_group)
6028 cfg->persistent_group = 1;
6029 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
6030 if (wpa_s->max_stations &&
6031 wpa_s->max_stations < wpa_s->conf->max_num_sta)
6032 cfg->max_clients = wpa_s->max_stations;
6034 cfg->max_clients = wpa_s->conf->max_num_sta;
6035 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6036 cfg->ssid_len = ssid->ssid_len;
6037 cfg->freq = ssid->frequency;
6038 cfg->cb_ctx = wpa_s;
6039 cfg->ie_update = wpas_p2p_ie_update;
6040 cfg->idle_update = wpas_p2p_idle_update;
6042 group = p2p_group_init(wpa_s->global->p2p, cfg);
6045 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
6046 p2p_group_notif_formation_done(group);
6047 wpa_s->p2p_group = group;
6052 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6055 struct wpa_ssid *ssid = wpa_s->current_ssid;
6057 if (!wpa_s->p2p_in_provisioning) {
6058 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6059 "provisioning not in progress");
6063 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6064 u8 go_dev_addr[ETH_ALEN];
6065 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6066 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6068 /* Clear any stored provisioning info */
6069 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6072 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
6074 wpa_s->p2p_go_group_formation_completed = 1;
6075 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6077 * Use a separate timeout for initial data connection to
6078 * complete to allow the group to be removed automatically if
6079 * something goes wrong in this step before the P2P group idle
6080 * timeout mechanism is taken into use.
6082 wpa_dbg(wpa_s, MSG_DEBUG,
6083 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6084 P2P_MAX_INITIAL_CONN_WAIT);
6085 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6086 wpas_p2p_group_formation_timeout,
6087 wpa_s->parent, NULL);
6090 * Use a separate timeout for initial data connection to
6091 * complete to allow the group to be removed automatically if
6092 * the client does not complete data connection successfully.
6094 wpa_dbg(wpa_s, MSG_DEBUG,
6095 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6096 P2P_MAX_INITIAL_CONN_WAIT_GO);
6097 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6098 wpas_p2p_group_formation_timeout,
6099 wpa_s->parent, NULL);
6101 * Complete group formation on first successful data connection
6103 wpa_s->p2p_go_group_formation_completed = 0;
6105 if (wpa_s->global->p2p)
6106 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
6107 wpas_group_formation_completed(wpa_s, 1, 0);
6111 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6112 struct wps_event_fail *fail)
6114 if (!wpa_s->p2p_in_provisioning) {
6115 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6116 "provisioning not in progress");
6120 if (wpa_s->go_params) {
6121 p2p_clear_provisioning_info(
6123 wpa_s->go_params->peer_device_addr);
6126 wpas_notify_p2p_wps_failed(wpa_s, fail);
6128 if (wpa_s == wpa_s->global->p2p_group_formation) {
6130 * Allow some time for the failed WPS negotiation exchange to
6131 * complete, but remove the group since group formation cannot
6132 * succeed after provisioning failure.
6134 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6135 wpa_s->global->p2p_fail_on_wps_complete = 1;
6136 eloop_deplete_timeout(0, 50000,
6137 wpas_p2p_group_formation_timeout,
6138 wpa_s->parent, NULL);
6143 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6145 if (!wpa_s->global->p2p_fail_on_wps_complete ||
6146 !wpa_s->p2p_in_provisioning)
6149 wpas_p2p_grpform_fail_after_wps(wpa_s);
6155 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6156 const char *config_method,
6157 enum wpas_p2p_prov_disc_use use,
6158 struct p2ps_provision *p2ps_prov)
6162 wpa_s->global->pending_p2ps_group = 0;
6163 wpa_s->p2p_fallback_to_go_neg = 0;
6164 wpa_s->pending_pd_use = NORMAL_PD;
6165 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6166 p2ps_prov->conncap = p2ps_group_capability(
6167 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role);
6168 wpa_printf(MSG_DEBUG,
6169 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6170 __func__, p2ps_prov->conncap,
6171 p2ps_prov->adv_id, p2ps_prov->conncap,
6172 p2ps_prov->status, p2ps_prov->info);
6175 } else if (os_strncmp(config_method, "display", 7) == 0)
6176 config_methods = WPS_CONFIG_DISPLAY;
6177 else if (os_strncmp(config_method, "keypad", 6) == 0)
6178 config_methods = WPS_CONFIG_KEYPAD;
6179 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6180 os_strncmp(config_method, "pushbutton", 10) == 0)
6181 config_methods = WPS_CONFIG_PUSHBUTTON;
6183 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6188 if (use == WPAS_P2P_PD_AUTO) {
6189 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6190 wpa_s->pending_pd_config_methods = config_methods;
6191 wpa_s->p2p_auto_pd = 1;
6192 wpa_s->p2p_auto_join = 0;
6193 wpa_s->pending_pd_before_join = 0;
6194 wpa_s->auto_pd_scan_retry = 0;
6195 wpas_p2p_stop_find(wpa_s);
6196 wpa_s->p2p_join_scan_count = 0;
6197 os_get_reltime(&wpa_s->p2p_auto_started);
6198 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6199 wpa_s->p2p_auto_started.sec,
6200 wpa_s->p2p_auto_started.usec);
6201 wpas_p2p_join_scan(wpa_s, NULL);
6205 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6210 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
6211 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
6216 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6219 return p2p_scan_result_text(ies, ies_len, buf, end);
6223 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6225 if (!offchannel_pending_action_tx(wpa_s))
6228 wpas_p2p_action_tx_clear(wpa_s);
6230 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6231 "operation request");
6232 offchannel_clear_pending_action_tx(wpa_s);
6236 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
6237 enum p2p_discovery_type type,
6238 unsigned int num_req_dev_types, const u8 *req_dev_types,
6239 const u8 *dev_id, unsigned int search_delay,
6240 u8 seek_cnt, const char **seek_string, int freq)
6242 wpas_p2p_clear_pending_action_tx(wpa_s);
6243 wpa_s->p2p_long_listen = 0;
6245 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6246 wpa_s->p2p_in_provisioning)
6249 wpa_supplicant_cancel_sched_scan(wpa_s);
6251 return p2p_find(wpa_s->global->p2p, timeout, type,
6252 num_req_dev_types, req_dev_types, dev_id,
6253 search_delay, seek_cnt, seek_string, freq);
6257 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6258 struct wpa_scan_results *scan_res)
6260 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6262 if (wpa_s->p2p_scan_work) {
6263 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6264 wpa_s->p2p_scan_work = NULL;
6265 radio_work_done(work);
6268 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6272 * Indicate that results have been processed so that the P2P module can
6273 * continue pending tasks.
6275 p2p_scan_res_handled(wpa_s->global->p2p);
6279 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
6281 wpas_p2p_clear_pending_action_tx(wpa_s);
6282 wpa_s->p2p_long_listen = 0;
6283 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6284 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
6286 if (wpa_s->global->p2p)
6287 p2p_stop_find(wpa_s->global->p2p);
6289 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6290 wpa_printf(MSG_DEBUG,
6291 "P2P: Do not consider the scan results after stop_find");
6292 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6297 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6299 wpas_p2p_stop_find_oper(wpa_s);
6300 if (!wpa_s->global->pending_group_iface_for_p2ps)
6301 wpas_p2p_remove_pending_group_interface(wpa_s);
6305 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6307 struct wpa_supplicant *wpa_s = eloop_ctx;
6308 wpa_s->p2p_long_listen = 0;
6312 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6316 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6319 wpa_supplicant_cancel_sched_scan(wpa_s);
6320 wpas_p2p_clear_pending_action_tx(wpa_s);
6324 * This is a request for unlimited Listen state. However, at
6325 * least for now, this is mapped to a Listen state for one
6330 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6331 wpa_s->p2p_long_listen = 0;
6334 * Stop previous find/listen operation to avoid trying to request a new
6335 * remain-on-channel operation while the driver is still running the
6338 if (wpa_s->global->p2p)
6339 p2p_stop_find(wpa_s->global->p2p);
6341 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6342 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
6343 wpa_s->p2p_long_listen = timeout * 1000;
6344 eloop_register_timeout(timeout, 0,
6345 wpas_p2p_long_listen_timeout,
6353 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
6354 u8 *buf, size_t len, int p2p_group)
6356 struct wpabuf *p2p_ie;
6359 if (wpa_s->global->p2p_disabled)
6362 * Advertize mandatory cross connection capability even on
6363 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6365 if (wpa_s->conf->p2p_disabled && p2p_group)
6367 if (wpa_s->global->p2p == NULL)
6372 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6373 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6375 wpabuf_free(p2p_ie);
6381 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
6382 const u8 *dst, const u8 *bssid,
6383 const u8 *ie, size_t ie_len,
6384 unsigned int rx_freq, int ssi_signal)
6386 if (wpa_s->global->p2p_disabled)
6388 if (wpa_s->global->p2p == NULL)
6391 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
6392 ie, ie_len, rx_freq)) {
6393 case P2P_PREQ_NOT_P2P:
6394 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6397 case P2P_PREQ_MALFORMED:
6398 case P2P_PREQ_NOT_LISTEN:
6399 case P2P_PREQ_NOT_PROCESSED:
6400 default: /* make gcc happy */
6402 case P2P_PREQ_PROCESSED:
6408 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6409 const u8 *sa, const u8 *bssid,
6410 u8 category, const u8 *data, size_t len, int freq)
6412 if (wpa_s->global->p2p_disabled)
6414 if (wpa_s->global->p2p == NULL)
6417 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6422 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6424 if (wpa_s->global->p2p_disabled)
6426 if (wpa_s->global->p2p == NULL)
6429 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
6433 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6435 p2p_group_deinit(wpa_s->p2p_group);
6436 wpa_s->p2p_group = NULL;
6438 wpa_s->ap_configured_cb = NULL;
6439 wpa_s->ap_configured_cb_ctx = NULL;
6440 wpa_s->ap_configured_cb_data = NULL;
6441 wpa_s->connect_without_scan = NULL;
6445 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6447 wpa_s->p2p_long_listen = 0;
6449 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6452 return p2p_reject(wpa_s->global->p2p, addr);
6456 /* Invite to reinvoke a persistent group */
6457 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6458 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6459 int ht40, int vht, int pref_freq)
6461 enum p2p_invite_role role;
6465 int no_pref_freq_given = pref_freq == 0;
6466 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6468 wpa_s->global->p2p_invite_group = NULL;
6470 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6472 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6474 wpa_s->p2p_persistent_go_freq = freq;
6475 wpa_s->p2p_go_ht40 = !!ht40;
6476 if (ssid->mode == WPAS_MODE_P2P_GO) {
6477 role = P2P_INVITE_ROLE_GO;
6478 if (peer_addr == NULL) {
6479 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6480 "address in invitation command");
6483 if (wpas_p2p_create_iface(wpa_s)) {
6484 if (wpas_p2p_add_group_interface(wpa_s,
6485 WPA_IF_P2P_GO) < 0) {
6486 wpa_printf(MSG_ERROR, "P2P: Failed to "
6487 "allocate a new interface for the "
6491 bssid = wpa_s->pending_interface_addr;
6493 bssid = wpa_s->own_addr;
6495 role = P2P_INVITE_ROLE_CLIENT;
6496 peer_addr = ssid->bssid;
6498 wpa_s->pending_invite_ssid_id = ssid->id;
6500 size = P2P_MAX_PREF_CHANNELS;
6501 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6502 role == P2P_INVITE_ROLE_GO,
6503 pref_freq_list, &size);
6506 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
6508 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6511 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6512 no_pref_freq_given && pref_freq > 0 &&
6513 wpa_s->num_multichan_concurrent > 1 &&
6514 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6515 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6521 * Stop any find/listen operations before invitation and possibly
6522 * connection establishment.
6524 wpas_p2p_stop_find_oper(wpa_s);
6526 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6527 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
6532 /* Invite to join an active group */
6533 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6534 const u8 *peer_addr, const u8 *go_dev_addr)
6536 struct wpa_global *global = wpa_s->global;
6537 enum p2p_invite_role role;
6539 struct wpa_ssid *ssid;
6541 int freq = 0, force_freq = 0, pref_freq = 0;
6543 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6545 wpa_s->p2p_persistent_go_freq = 0;
6546 wpa_s->p2p_go_ht40 = 0;
6547 wpa_s->p2p_go_vht = 0;
6549 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6550 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6553 if (wpa_s == NULL) {
6554 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6558 ssid = wpa_s->current_ssid;
6560 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6565 wpa_s->global->p2p_invite_group = wpa_s;
6566 persistent = ssid->p2p_persistent_group &&
6567 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6568 ssid->ssid, ssid->ssid_len);
6570 if (ssid->mode == WPAS_MODE_P2P_GO) {
6571 role = P2P_INVITE_ROLE_ACTIVE_GO;
6572 bssid = wpa_s->own_addr;
6573 if (go_dev_addr == NULL)
6574 go_dev_addr = wpa_s->global->p2p_dev_addr;
6575 freq = ssid->frequency;
6577 role = P2P_INVITE_ROLE_CLIENT;
6578 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6579 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6580 "invite to current group");
6583 bssid = wpa_s->bssid;
6584 if (go_dev_addr == NULL &&
6585 !is_zero_ether_addr(wpa_s->go_dev_addr))
6586 go_dev_addr = wpa_s->go_dev_addr;
6587 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6588 (int) wpa_s->assoc_freq;
6590 wpa_s->parent->pending_invite_ssid_id = -1;
6592 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6595 size = P2P_MAX_PREF_CHANNELS;
6596 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6597 role == P2P_INVITE_ROLE_ACTIVE_GO,
6598 pref_freq_list, &size);
6601 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6603 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6604 ssid->ssid, ssid->ssid_len, force_freq,
6605 go_dev_addr, persistent, pref_freq, -1);
6609 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6611 struct wpa_ssid *ssid = wpa_s->current_ssid;
6612 u8 go_dev_addr[ETH_ALEN];
6613 int network_id = -1;
6619 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6620 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6621 wpa_s->parent, NULL);
6624 if (!wpa_s->show_group_started || !ssid)
6627 wpa_s->show_group_started = 0;
6629 os_memset(go_dev_addr, 0, ETH_ALEN);
6630 if (ssid->bssid_set)
6631 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6632 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6634 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6636 if (wpa_s->global->p2p_group_formation == wpa_s)
6637 wpa_s->global->p2p_group_formation = NULL;
6639 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6640 (int) wpa_s->assoc_freq;
6643 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6646 res = os_snprintf(ip_addr, sizeof(ip_addr),
6647 " ip_addr=%u.%u.%u.%u "
6648 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6649 ip[0], ip[1], ip[2], ip[3],
6650 ip[4], ip[5], ip[6], ip[7],
6651 ip[8], ip[9], ip[10], ip[11]);
6652 if (os_snprintf_error(sizeof(ip_addr), res))
6656 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6657 ssid->passphrase == NULL && ssid->psk_set ?
6659 ssid->passphrase, go_dev_addr, persistent,
6663 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6666 network_id = ssid->id;
6667 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
6671 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6672 u32 interval1, u32 duration2, u32 interval2)
6676 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6679 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6680 wpa_s->current_ssid == NULL ||
6681 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6684 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6685 wpa_s->own_addr, wpa_s->assoc_freq,
6686 duration1, interval1, duration2, interval2);
6688 wpa_s->waiting_presence_resp = 1;
6694 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6695 unsigned int interval)
6697 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6700 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6704 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6706 if (wpa_s->current_ssid == NULL) {
6708 * current_ssid can be cleared when P2P client interface gets
6709 * disconnected, so assume this interface was used as P2P
6714 return wpa_s->current_ssid->p2p_group &&
6715 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6719 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6721 struct wpa_supplicant *wpa_s = eloop_ctx;
6723 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
6724 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6729 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6731 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
6735 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6739 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6740 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6742 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6745 timeout = wpa_s->conf->p2p_group_idle;
6746 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6747 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6748 timeout = P2P_MAX_CLIENT_IDLE;
6754 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6755 timeout = 0; /* special client mode no-timeout */
6760 if (wpa_s->p2p_in_provisioning) {
6762 * Use the normal group formation timeout during the
6763 * provisioning phase to avoid terminating this process too
6764 * early due to group idle timeout.
6766 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6767 "during provisioning");
6771 if (wpa_s->show_group_started) {
6773 * Use the normal group formation timeout between the end of
6774 * the provisioning phase and completion of 4-way handshake to
6775 * avoid terminating this process too early due to group idle
6778 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6779 "while waiting for initial 4-way handshake to "
6784 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
6786 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6791 /* Returns 1 if the interface was removed */
6792 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6793 u16 reason_code, const u8 *ie, size_t ie_len,
6794 int locally_generated)
6796 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6799 if (!locally_generated)
6800 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6803 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6804 wpa_s->current_ssid &&
6805 wpa_s->current_ssid->p2p_group &&
6806 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6807 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6808 "session is ending");
6809 if (wpas_p2p_group_delete(wpa_s,
6810 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6819 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6820 u16 reason_code, const u8 *ie, size_t ie_len,
6821 int locally_generated)
6823 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6826 if (!locally_generated)
6827 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6832 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6834 struct p2p_data *p2p = wpa_s->global->p2p;
6839 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6842 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6843 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6845 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6846 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
6849 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6850 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6852 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6853 p2p_set_uuid(p2p, wpa_s->wps->uuid);
6855 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6856 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6857 p2p_set_model_name(p2p, wpa_s->conf->model_name);
6858 p2p_set_model_number(p2p, wpa_s->conf->model_number);
6859 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6862 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6863 p2p_set_sec_dev_types(p2p,
6864 (void *) wpa_s->conf->sec_device_type,
6865 wpa_s->conf->num_sec_device_types);
6867 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6869 p2p_remove_wps_vendor_extensions(p2p);
6870 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6871 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6873 p2p_add_wps_vendor_extension(
6874 p2p, wpa_s->conf->wps_vendor_ext[i]);
6878 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6879 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6881 country[0] = wpa_s->conf->country[0];
6882 country[1] = wpa_s->conf->country[1];
6884 p2p_set_country(p2p, country);
6887 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6888 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6889 wpa_s->conf->p2p_ssid_postfix ?
6890 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6894 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6895 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
6897 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6898 u8 reg_class, channel;
6903 if (wpa_s->conf->p2p_listen_reg_class &&
6904 wpa_s->conf->p2p_listen_channel) {
6905 reg_class = wpa_s->conf->p2p_listen_reg_class;
6906 channel = wpa_s->conf->p2p_listen_channel;
6911 * Pick one of the social channels randomly as the
6914 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6917 channel = 1 + (r % 3) * 5;
6920 ret = p2p_set_listen_channel(p2p, reg_class, channel,
6923 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6926 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6927 u8 op_reg_class, op_channel, cfg_op_channel;
6930 if (wpa_s->conf->p2p_oper_reg_class &&
6931 wpa_s->conf->p2p_oper_channel) {
6932 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
6933 op_channel = wpa_s->conf->p2p_oper_channel;
6938 * Use random operation channel from (1, 6, 11)
6939 *if no other preference is indicated.
6941 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6944 op_channel = 1 + (r % 3) * 5;
6947 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
6950 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
6954 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
6955 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
6956 wpa_s->conf->p2p_pref_chan) < 0) {
6957 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
6961 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
6962 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
6967 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
6968 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
6972 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
6975 if (!wpa_s->ap_iface)
6977 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
6982 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
6984 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6987 wpa_s->global->cross_connection = enabled;
6988 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
6991 struct wpa_supplicant *iface;
6993 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
6995 if (iface->cross_connect_enabled == 0)
6998 iface->cross_connect_enabled = 0;
6999 iface->cross_connect_in_use = 0;
7000 wpa_msg_global(iface->parent, MSG_INFO,
7001 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7003 iface->cross_connect_uplink);
7011 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7013 struct wpa_supplicant *iface;
7015 if (!uplink->global->cross_connection)
7018 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7019 if (!iface->cross_connect_enabled)
7021 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7024 if (iface->ap_iface == NULL)
7026 if (iface->cross_connect_in_use)
7029 iface->cross_connect_in_use = 1;
7030 wpa_msg_global(iface->parent, MSG_INFO,
7031 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7032 iface->ifname, iface->cross_connect_uplink);
7037 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7039 struct wpa_supplicant *iface;
7041 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7042 if (!iface->cross_connect_enabled)
7044 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7047 if (!iface->cross_connect_in_use)
7050 wpa_msg_global(iface->parent, MSG_INFO,
7051 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7052 iface->ifname, iface->cross_connect_uplink);
7053 iface->cross_connect_in_use = 0;
7058 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7060 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7061 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7062 wpa_s->cross_connect_disallowed)
7063 wpas_p2p_disable_cross_connect(wpa_s);
7065 wpas_p2p_enable_cross_connect(wpa_s);
7066 if (!wpa_s->ap_iface &&
7067 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7068 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7072 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7074 wpas_p2p_disable_cross_connect(wpa_s);
7075 if (!wpa_s->ap_iface &&
7076 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7078 wpas_p2p_set_group_idle_timeout(wpa_s);
7082 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7084 struct wpa_supplicant *iface;
7086 if (!wpa_s->global->cross_connection)
7089 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7092 if (iface->drv_flags &
7093 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7095 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7096 iface != wpa_s->parent)
7099 wpa_s->cross_connect_enabled = 1;
7100 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7101 sizeof(wpa_s->cross_connect_uplink));
7102 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7103 "%s to %s whenever uplink is available",
7104 wpa_s->ifname, wpa_s->cross_connect_uplink);
7106 if (iface->ap_iface || iface->current_ssid == NULL ||
7107 iface->current_ssid->mode != WPAS_MODE_INFRA ||
7108 iface->cross_connect_disallowed ||
7109 iface->wpa_state != WPA_COMPLETED)
7112 wpa_s->cross_connect_in_use = 1;
7113 wpa_msg_global(wpa_s->parent, MSG_INFO,
7114 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7115 wpa_s->ifname, wpa_s->cross_connect_uplink);
7121 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7123 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7124 !wpa_s->p2p_in_provisioning)
7125 return 0; /* not P2P client operation */
7127 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7129 if (wpa_s != wpa_s->parent)
7130 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
7131 wpas_p2p_group_formation_failed(wpa_s, 0);
7136 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7138 struct wpa_supplicant *wpa_s = eloop_ctx;
7139 wpas_p2p_notif_pbc_overlap(wpa_s);
7143 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7144 enum wpas_p2p_channel_update_trig trig)
7146 struct p2p_channels chan, cli_chan;
7147 struct wpa_used_freq_data *freqs = NULL;
7148 unsigned int num = wpa_s->num_multichan_concurrent;
7150 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7153 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7157 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7159 os_memset(&chan, 0, sizeof(chan));
7160 os_memset(&cli_chan, 0, sizeof(cli_chan));
7161 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
7162 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7167 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7169 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7172 * The used frequencies map changed, so it is possible that a GO is
7173 * using a channel that is no longer valid for P2P use. It is also
7174 * possible that due to policy consideration, it would be preferable to
7175 * move it to a frequency already used by other station interfaces.
7177 wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
7183 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7184 struct wpa_scan_results *scan_res)
7186 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7190 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7192 struct wpa_global *global = wpa_s->global;
7196 if (global->p2p == NULL)
7199 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7201 if (wpa_s->pending_interface_name[0] &&
7202 !is_zero_ether_addr(wpa_s->pending_interface_addr))
7205 peer = p2p_get_go_neg_peer(global->p2p);
7207 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7208 MACSTR, MAC2STR(peer));
7209 p2p_unauthorize(global->p2p, peer);
7213 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7214 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7215 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7219 if (wpa_s->pending_pd_before_join) {
7220 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7221 wpa_s->pending_pd_before_join = 0;
7225 wpas_p2p_stop_find(wpa_s);
7227 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7228 if (wpa_s == global->p2p_group_formation &&
7229 (wpa_s->p2p_in_provisioning ||
7230 wpa_s->parent->pending_interface_type ==
7231 WPA_IF_P2P_CLIENT)) {
7232 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7233 "formation found - cancelling",
7236 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7237 wpa_s->parent, NULL);
7238 if (wpa_s->p2p_in_provisioning) {
7239 wpas_group_formation_completed(wpa_s, 0, 0);
7242 wpas_p2p_group_delete(wpa_s,
7243 P2P_GROUP_REMOVAL_REQUESTED);
7245 } else if (wpa_s->p2p_in_invitation) {
7246 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7249 wpas_p2p_group_formation_failed(wpa_s, 0);
7254 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7262 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7264 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7267 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7268 "being available anymore");
7269 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
7273 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7274 int freq_24, int freq_5, int freq_overall)
7276 struct p2p_data *p2p = wpa_s->global->p2p;
7279 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7283 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7286 struct p2p_data *p2p = wpa_s->global->p2p;
7291 if (hwaddr_aton(addr, peer))
7294 return p2p_unauthorize(p2p, peer);
7299 * wpas_p2p_disconnect - Disconnect from a P2P Group
7300 * @wpa_s: Pointer to wpa_supplicant data
7301 * Returns: 0 on success, -1 on failure
7303 * This can be used to disconnect from a group in which the local end is a P2P
7304 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7305 * virtual network interface was created for this group, that interface will be
7306 * removed. Otherwise, only the configured P2P group network will be removed
7307 * from the interface.
7309 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7315 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7320 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7324 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7327 ret = p2p_in_progress(wpa_s->global->p2p);
7330 * Check whether there is an ongoing WPS provisioning step (or
7331 * other parts of group formation) on another interface since
7332 * p2p_in_progress() does not report this to avoid issues for
7333 * scans during such provisioning step.
7335 if (wpa_s->global->p2p_group_formation &&
7336 wpa_s->global->p2p_group_formation != wpa_s) {
7337 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7338 "in group formation",
7339 wpa_s->global->p2p_group_formation->ifname);
7344 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
7345 struct os_reltime now;
7346 os_get_reltime(&now);
7347 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7348 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
7349 /* Wait for the first client has expired */
7350 wpa_s->global->p2p_go_wait_client.sec = 0;
7352 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7361 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7362 struct wpa_ssid *ssid)
7364 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7365 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7366 wpa_s->parent, NULL) > 0) {
7368 * Remove the network by scheduling the group formation
7369 * timeout to happen immediately. The teardown code
7370 * needs to be scheduled to run asynch later so that we
7371 * don't delete data from under ourselves unexpectedly.
7372 * Calling wpas_p2p_group_formation_timeout directly
7373 * causes a series of crashes in WPS failure scenarios.
7375 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7376 "P2P group network getting removed");
7377 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7378 wpa_s->parent, NULL);
7383 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
7384 const u8 *addr, const u8 *ssid,
7390 for (s = wpa_s->conf->ssid; s; s = s->next) {
7391 if (s->disabled != 2)
7394 (ssid_len != s->ssid_len ||
7395 os_memcmp(ssid, s->ssid, ssid_len) != 0))
7398 if (s->mode == WPAS_MODE_P2P_GO)
7402 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7403 return s; /* peer is GO in the persistent group */
7404 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7406 for (i = 0; i < s->num_p2p_clients; i++) {
7407 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
7408 addr, ETH_ALEN) == 0)
7409 return s; /* peer is P2P client in persistent
7418 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7421 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7422 wpa_s->parent, NULL) > 0) {
7424 * This can happen if WPS provisioning step is not terminated
7425 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7426 * peer was able to connect, there is no need to time out group
7427 * formation after this, though. In addition, this is used with
7428 * the initial connection wait on the GO as a separate formation
7429 * timeout and as such, expected to be hit after the initial WPS
7430 * provisioning step.
7432 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7434 if (!wpa_s->p2p_go_group_formation_completed &&
7435 !wpa_s->group_formation_reported) {
7437 * GO has not yet notified group formation success since
7438 * the WPS step was not completed cleanly. Do that
7439 * notification now since the P2P Client was able to
7440 * connect and as such, must have received the
7441 * credential from the WPS step.
7443 if (wpa_s->global->p2p)
7444 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7445 wpas_group_formation_completed(wpa_s, 1, 0);
7448 if (!wpa_s->p2p_go_group_formation_completed) {
7449 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7450 wpa_s->p2p_go_group_formation_completed = 1;
7451 wpa_s->global->p2p_group_formation = NULL;
7452 wpa_s->p2p_in_provisioning = 0;
7453 wpa_s->p2p_in_invitation = 0;
7455 wpa_s->global->p2p_go_wait_client.sec = 0;
7458 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7462 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7465 struct wpa_supplicant *group = wpa_s;
7468 if (wpa_s->global->p2p_group_formation)
7469 group = wpa_s->global->p2p_group_formation;
7470 wpa_s = wpa_s->global->p2p_init_wpa_s;
7471 offchannel_send_action_done(wpa_s);
7473 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7474 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7475 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7476 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7477 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7478 wpa_s->p2p_persistent_id,
7479 wpa_s->p2p_pd_before_go_neg,
7486 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7490 if (!wpa_s->p2p_fallback_to_go_neg ||
7491 wpa_s->p2p_in_provisioning <= 5)
7494 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7495 return 0; /* peer operating as a GO */
7497 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7498 "fallback to GO Negotiation");
7499 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7500 "reason=GO-not-found");
7501 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7503 return res == 1 ? 2 : 1;
7507 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7509 struct wpa_supplicant *ifs;
7511 if (wpa_s->wpa_state > WPA_SCANNING) {
7512 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7513 "concurrent operation",
7514 wpa_s->conf->p2p_search_delay);
7515 return wpa_s->conf->p2p_search_delay;
7518 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7520 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
7521 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7522 "delay due to concurrent operation on "
7524 wpa_s->conf->p2p_search_delay,
7526 return wpa_s->conf->p2p_search_delay;
7534 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7535 struct wpa_ssid *s, const u8 *addr,
7538 struct psk_list_entry *psk, *tmp;
7541 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7543 if ((iface_addr && !psk->p2p &&
7544 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7545 (!iface_addr && psk->p2p &&
7546 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7547 wpa_dbg(wpa_s, MSG_DEBUG,
7548 "P2P: Remove persistent group PSK list entry for "
7550 MAC2STR(psk->addr), psk->p2p);
7551 dl_list_del(&psk->list);
7561 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7562 const u8 *p2p_dev_addr,
7563 const u8 *psk, size_t psk_len)
7565 struct wpa_ssid *ssid = wpa_s->current_ssid;
7566 struct wpa_ssid *persistent;
7567 struct psk_list_entry *p, *last;
7569 if (psk_len != sizeof(p->psk))
7573 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7574 " p2p_dev_addr=" MACSTR,
7575 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7576 if (is_zero_ether_addr(p2p_dev_addr))
7577 p2p_dev_addr = NULL;
7579 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7583 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7584 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7585 /* To be added to persistent group once created */
7586 if (wpa_s->global->add_psk == NULL) {
7587 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7588 if (wpa_s->global->add_psk == NULL)
7591 p = wpa_s->global->add_psk;
7594 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7597 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7599 os_memcpy(p->psk, psk, psk_len);
7603 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7604 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7608 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7611 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7615 p = os_zalloc(sizeof(*p));
7620 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7623 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7625 os_memcpy(p->psk, psk, psk_len);
7627 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7628 (last = dl_list_last(&persistent->psk_list,
7629 struct psk_list_entry, list))) {
7630 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7631 MACSTR " (p2p=%u) to make room for a new one",
7632 MAC2STR(last->addr), last->p2p);
7633 dl_list_del(&last->list);
7637 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7638 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7639 p2p_dev_addr == NULL);
7641 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7642 MACSTR, MAC2STR(p2p_dev_addr));
7644 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7647 dl_list_add(&persistent->psk_list, &p->list);
7649 if (wpa_s->parent->conf->update_config &&
7650 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7651 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7655 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7656 struct wpa_ssid *s, const u8 *addr,
7661 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
7662 if (res > 0 && wpa_s->conf->update_config &&
7663 wpa_config_write(wpa_s->confname, wpa_s->conf))
7664 wpa_dbg(wpa_s, MSG_DEBUG,
7665 "P2P: Failed to update configuration");
7669 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7670 const u8 *peer, int iface_addr)
7672 struct hostapd_data *hapd;
7673 struct hostapd_wpa_psk *psk, *prev, *rem;
7674 struct sta_info *sta;
7676 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7677 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7680 /* Remove per-station PSK entry */
7681 hapd = wpa_s->ap_iface->bss[0];
7683 psk = hapd->conf->ssid.wpa_psk;
7685 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7687 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7688 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7689 MACSTR " iface_addr=%d",
7690 MAC2STR(peer), iface_addr);
7692 prev->next = psk->next;
7694 hapd->conf->ssid.wpa_psk = psk->next;
7704 /* Disconnect from group */
7706 sta = ap_get_sta(hapd, peer);
7708 sta = ap_get_sta_p2p(hapd, peer);
7710 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7711 " (iface_addr=%d) from group",
7712 MAC2STR(peer), iface_addr);
7713 hostapd_drv_sta_deauth(hapd, sta->addr,
7714 WLAN_REASON_DEAUTH_LEAVING);
7715 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7720 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7724 struct wpa_supplicant *w;
7725 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
7727 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7729 /* Remove from any persistent group */
7730 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
7731 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7734 wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
7735 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
7738 /* Remove from any operating group */
7739 for (w = wpa_s->global->ifaces; w; w = w->next)
7740 wpas_p2p_remove_client_go(w, peer, iface_addr);
7744 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7746 struct wpa_supplicant *wpa_s = eloop_ctx;
7747 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7751 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7753 struct wpa_supplicant *wpa_s = eloop_ctx;
7755 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7756 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7760 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7761 struct wpa_ssid *ssid)
7763 struct wpa_supplicant *iface;
7765 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7766 if (!iface->current_ssid ||
7767 iface->current_ssid->frequency == freq ||
7768 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7769 !iface->current_ssid->p2p_group))
7772 /* Remove the connection with least priority */
7773 if (!wpas_is_p2p_prioritized(iface)) {
7774 /* STA connection has priority over existing
7775 * P2P connection, so remove the interface. */
7776 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7777 eloop_register_timeout(0, 0,
7778 wpas_p2p_group_freq_conflict,
7780 /* If connection in progress is P2P connection, do not
7781 * proceed for the connection. */
7787 /* P2P connection has priority, disable the STA network
7789 wpa_supplicant_disable_network(wpa_s->global->ifaces,
7791 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7792 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7793 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7795 /* If P2P connection is in progress, continue
7808 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7810 struct wpa_ssid *ssid = wpa_s->current_ssid;
7812 if (ssid == NULL || !ssid->p2p_group)
7815 if (wpa_s->p2p_last_4way_hs_fail &&
7816 wpa_s->p2p_last_4way_hs_fail == ssid) {
7817 u8 go_dev_addr[ETH_ALEN];
7818 struct wpa_ssid *persistent;
7820 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7822 ssid->ssid_len) <= 0) {
7823 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7827 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7828 MACSTR, MAC2STR(go_dev_addr));
7829 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7832 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7833 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7836 wpa_msg_global(wpa_s->parent, MSG_INFO,
7837 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7840 wpa_s->p2p_last_4way_hs_fail = NULL;
7842 * Remove the group from a timeout to avoid issues with caller
7843 * continuing to use the interface if this is on a P2P group
7846 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7851 wpa_s->p2p_last_4way_hs_fail = ssid;
7856 #ifdef CONFIG_WPS_NFC
7858 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7866 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7870 wsc_len = wsc ? wpabuf_len(wsc) : 0;
7871 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
7878 wpabuf_put_be16(ret, wsc_len);
7880 wpabuf_put_buf(ret, wsc);
7881 wpabuf_put_be16(ret, wpabuf_len(p2p));
7882 wpabuf_put_buf(ret, p2p);
7886 wpa_hexdump_buf(MSG_DEBUG,
7887 "P2P: Generated NFC connection handover message", ret);
7891 tmp = ndef_build_p2p(ret);
7894 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
7904 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
7905 struct wpa_ssid **ssid, u8 *go_dev_addr)
7907 struct wpa_supplicant *iface;
7910 os_memset(go_dev_addr, 0, ETH_ALEN);
7913 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7914 if (iface->wpa_state < WPA_ASSOCIATING ||
7915 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
7916 !iface->current_ssid->p2p_group ||
7917 iface->current_ssid->mode != WPAS_MODE_INFRA)
7920 *ssid = iface->current_ssid;
7922 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
7923 return iface->assoc_freq;
7929 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
7932 struct wpabuf *wsc, *p2p;
7933 struct wpa_ssid *ssid;
7934 u8 go_dev_addr[ETH_ALEN];
7935 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7937 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
7938 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
7942 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7943 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7944 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
7945 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
7949 if (cli_freq == 0) {
7950 wsc = wps_build_nfc_handover_req_p2p(
7951 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
7954 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
7955 go_dev_addr, ssid ? ssid->ssid : NULL,
7956 ssid ? ssid->ssid_len : 0);
7958 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7962 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
7965 struct wpabuf *wsc, *p2p;
7966 struct wpa_ssid *ssid;
7967 u8 go_dev_addr[ETH_ALEN];
7968 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7970 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7973 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7974 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7975 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7978 if (cli_freq == 0) {
7979 wsc = wps_build_nfc_handover_sel_p2p(
7981 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
7982 DEV_PW_NFC_CONNECTION_HANDOVER,
7983 wpa_s->conf->wps_nfc_dh_pubkey,
7984 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
7987 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
7988 go_dev_addr, ssid ? ssid->ssid : NULL,
7989 ssid ? ssid->ssid_len : 0);
7991 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7995 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
7996 struct p2p_nfc_params *params)
7998 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
7999 "connection handover (freq=%d)",
8002 if (params->go_freq && params->go_ssid_len) {
8003 wpa_s->p2p_wps_method = WPS_NFC;
8004 wpa_s->pending_join_wps_method = WPS_NFC;
8005 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8006 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8008 return wpas_p2p_join_start(wpa_s, params->go_freq,
8010 params->go_ssid_len);
8013 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8014 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
8015 params->go_freq, -1, 0, 1, 1);
8019 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8020 struct p2p_nfc_params *params, int tag)
8022 int res, persistent;
8023 struct wpa_ssid *ssid;
8025 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8026 "connection handover");
8027 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8028 ssid = wpa_s->current_ssid;
8031 if (ssid->mode != WPAS_MODE_P2P_GO)
8033 if (wpa_s->ap_iface == NULL)
8037 if (wpa_s == NULL) {
8038 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8042 if (wpa_s->parent->p2p_oob_dev_pw_id !=
8043 DEV_PW_NFC_CONNECTION_HANDOVER &&
8044 !wpa_s->parent->p2p_oob_dev_pw) {
8045 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8048 res = wpas_ap_wps_add_nfc_pw(
8049 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
8050 wpa_s->parent->p2p_oob_dev_pw,
8051 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
8052 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8057 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8061 if (!params->peer ||
8062 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8065 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8066 " to join", MAC2STR(params->peer->p2p_device_addr));
8068 wpa_s->global->p2p_invite_group = wpa_s;
8069 persistent = ssid->p2p_persistent_group &&
8070 wpas_p2p_get_persistent(wpa_s->parent,
8071 params->peer->p2p_device_addr,
8072 ssid->ssid, ssid->ssid_len);
8073 wpa_s->parent->pending_invite_ssid_id = -1;
8075 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8076 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8077 ssid->ssid, ssid->ssid_len, ssid->frequency,
8078 wpa_s->global->p2p_dev_addr, persistent, 0,
8079 wpa_s->parent->p2p_oob_dev_pw_id);
8083 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
8084 struct p2p_nfc_params *params,
8087 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8088 "connection handover");
8089 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8090 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
8091 forced_freq, -1, 0, 1, 1);
8095 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
8096 struct p2p_nfc_params *params,
8101 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8102 "connection handover");
8103 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8104 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
8105 forced_freq, -1, 0, 1, 1);
8109 res = wpas_p2p_listen(wpa_s, 60);
8111 p2p_unauthorize(wpa_s->global->p2p,
8112 params->peer->p2p_device_addr);
8119 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8120 const struct wpabuf *data,
8121 int sel, int tag, int forced_freq)
8123 const u8 *pos, *end;
8125 struct p2p_nfc_params params;
8128 os_memset(¶ms, 0, sizeof(params));
8131 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8133 pos = wpabuf_head(data);
8134 end = pos + wpabuf_len(data);
8136 if (end - pos < 2) {
8137 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8141 len = WPA_GET_BE16(pos);
8143 if (len > end - pos) {
8144 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8148 params.wsc_attr = pos;
8149 params.wsc_len = len;
8152 if (end - pos < 2) {
8153 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8157 len = WPA_GET_BE16(pos);
8159 if (len > end - pos) {
8160 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8164 params.p2p_attr = pos;
8165 params.p2p_len = len;
8168 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8169 params.wsc_attr, params.wsc_len);
8170 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8171 params.p2p_attr, params.p2p_len);
8173 wpa_hexdump(MSG_DEBUG,
8174 "P2P: Ignored extra data after P2P attributes",
8178 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
8182 if (params.next_step == NO_ACTION)
8185 if (params.next_step == BOTH_GO) {
8186 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8187 MAC2STR(params.peer->p2p_device_addr));
8191 if (params.next_step == PEER_CLIENT) {
8192 if (!is_zero_ether_addr(params.go_dev_addr)) {
8193 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8194 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8196 MAC2STR(params.peer->p2p_device_addr),
8198 MAC2STR(params.go_dev_addr),
8199 wpa_ssid_txt(params.go_ssid,
8200 params.go_ssid_len));
8202 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8203 "peer=" MACSTR " freq=%d",
8204 MAC2STR(params.peer->p2p_device_addr),
8210 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
8211 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8212 MACSTR, MAC2STR(params.peer->p2p_device_addr));
8216 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8217 wpa_s->p2p_oob_dev_pw = NULL;
8219 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8220 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8225 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8226 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8227 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8228 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8229 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8230 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8231 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8235 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8236 "peer OOB Device Password Id %u", id);
8239 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8240 "Device Password Id %u", id);
8241 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8242 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8243 params.oob_dev_pw_len -
8244 WPS_OOB_PUBKEY_HASH_LEN - 2);
8245 wpa_s->p2p_oob_dev_pw_id = id;
8246 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8247 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8248 params.oob_dev_pw_len -
8249 WPS_OOB_PUBKEY_HASH_LEN - 2);
8250 if (wpa_s->p2p_oob_dev_pw == NULL)
8253 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8254 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8255 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8258 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8259 "without Device Password");
8260 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8263 switch (params.next_step) {
8267 /* already covered above */
8270 return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
8272 return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
8274 return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
8276 /* TODO: use own OOB Dev Pw */
8277 return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
8284 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
8285 const struct wpabuf *data, int forced_freq)
8287 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8290 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
8294 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8295 const struct wpabuf *req,
8296 const struct wpabuf *sel, int forced_freq)
8301 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8304 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8306 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8307 wpabuf_head(req), wpabuf_len(req));
8308 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8309 wpabuf_head(sel), wpabuf_len(sel));
8311 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
8312 tmp = ndef_parse_p2p(init ? sel : req);
8314 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8318 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8326 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8329 int go_intent = wpa_s->conf->p2p_go_intent;
8330 struct wpa_supplicant *iface;
8332 if (wpa_s->global->p2p == NULL)
8336 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8337 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8339 if (!iface->ap_iface)
8341 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8343 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8345 if (wpa_s->p2p_nfc_tag_enabled)
8346 wpas_p2p_remove_pending_group_interface(wpa_s);
8347 wpa_s->p2p_nfc_tag_enabled = 0;
8351 if (wpa_s->global->p2p_disabled)
8354 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8355 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8356 wpa_s->conf->wps_nfc_dev_pw == NULL ||
8357 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8358 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8359 "to allow static handover cases");
8363 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8365 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8366 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8367 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8368 if (wpa_s->p2p_oob_dev_pw == NULL)
8370 wpa_s->p2p_peer_oob_pk_hash_known = 0;
8372 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8373 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8375 * P2P Group Interface present and the command came on group
8376 * interface, so enable the token for the current interface.
8378 wpa_s->create_p2p_iface = 0;
8380 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8383 if (wpa_s->create_p2p_iface) {
8384 enum wpa_driver_if_type iftype;
8385 /* Prepare to add a new interface for the group */
8386 iftype = WPA_IF_P2P_GROUP;
8387 if (go_intent == 15)
8388 iftype = WPA_IF_P2P_GO;
8389 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8390 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8391 "interface for the group");
8395 if_addr = wpa_s->pending_interface_addr;
8397 if_addr = wpa_s->own_addr;
8399 wpa_s->p2p_nfc_tag_enabled = enabled;
8401 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8402 struct hostapd_data *hapd;
8403 if (iface->ap_iface == NULL)
8405 hapd = iface->ap_iface->bss[0];
8406 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8407 hapd->conf->wps_nfc_dh_pubkey =
8408 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8409 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8410 hapd->conf->wps_nfc_dh_privkey =
8411 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8412 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8413 hapd->conf->wps_nfc_dev_pw =
8414 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8415 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8417 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8418 wpa_dbg(iface, MSG_DEBUG,
8419 "P2P: Failed to enable NFC Tag for GO");
8422 p2p_set_authorized_oob_dev_pw_id(
8423 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8429 #endif /* CONFIG_WPS_NFC */
8432 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8433 struct wpa_used_freq_data *freqs,
8436 u8 curr_chan, cand, chan;
8440 * If possible, optimize the Listen channel to be a channel that is
8441 * already used by one of the other interfaces.
8443 if (!wpa_s->conf->p2p_optimize_listen_chan)
8446 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8449 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8450 for (i = 0, cand = 0; i < num; i++) {
8451 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8452 if (curr_chan == chan) {
8457 if (chan == 1 || chan == 6 || chan == 11)
8462 wpa_dbg(wpa_s, MSG_DEBUG,
8463 "P2P: Update Listen channel to %u based on operating channel",
8465 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8470 static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8472 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8473 wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8477 /* TODO: Add CSA support */
8478 wpa_dbg(wpa_s, MSG_DEBUG, "Moving GO with CSA is not implemented");
8483 static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
8485 struct p2p_go_neg_results params;
8486 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8488 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
8490 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
8491 current_ssid->frequency);
8493 /* Stop the AP functionality */
8494 /* TODO: Should do this in a way that does not indicated to possible
8495 * P2P Clients in the group that the group is terminated. */
8496 wpa_supplicant_ap_deinit(wpa_s);
8498 /* Reselect the GO frequency */
8499 if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, NULL)) {
8500 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
8501 wpas_p2p_group_delete(wpa_s,
8502 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8505 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
8509 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
8510 wpa_printf(MSG_DEBUG,
8511 "P2P: Selected freq (%u MHz) is not valid for P2P",
8513 wpas_p2p_group_delete(wpa_s,
8514 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8518 /* Update the frequency */
8519 current_ssid->frequency = params.freq;
8520 wpa_s->connect_without_scan = current_ssid;
8521 wpa_s->reassociate = 1;
8522 wpa_s->disconnected = 0;
8523 wpa_supplicant_req_scan(wpa_s, 0, 0);
8527 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
8529 struct wpa_supplicant *wpa_s = eloop_ctx;
8531 if (!wpa_s->ap_iface || !wpa_s->current_ssid)
8534 wpas_p2p_go_update_common_freqs(wpa_s);
8537 * First, try a channel switch flow. If it is not supported or fails,
8538 * take down the GO and bring it up again.
8540 if (wpas_p2p_move_go_csa(wpa_s) < 0)
8541 wpas_p2p_move_go_no_csa(wpa_s);
8545 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
8547 struct wpa_supplicant *wpa_s = eloop_ctx;
8548 struct wpa_used_freq_data *freqs = NULL;
8549 unsigned int num = wpa_s->num_multichan_concurrent;
8551 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8555 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8557 /* Previous attempt to move a GO was not possible -- try again. */
8558 wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
8559 WPAS_P2P_CHANNEL_UPDATE_ANY);
8566 * Consider moving a GO from its currently used frequency:
8567 * 1. It is possible that due to regulatory consideration the frequency
8568 * can no longer be used and there is a need to evacuate the GO.
8569 * 2. It is possible that due to MCC considerations, it would be preferable
8570 * to move the GO to a channel that is currently used by some other
8571 * station interface.
8573 * In case a frequency that became invalid is once again valid, cancel a
8574 * previously initiated GO frequency change.
8576 static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
8577 struct wpa_used_freq_data *freqs,
8580 unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
8581 unsigned int timeout;
8584 wpas_p2p_go_update_common_freqs(wpa_s);
8586 freq = wpa_s->current_ssid->frequency;
8587 for (i = 0, invalid_freq = 0; i < num; i++) {
8588 if (freqs[i].freq == freq) {
8589 flags = freqs[i].flags;
8591 /* The channel is invalid, must change it */
8592 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
8593 wpa_dbg(wpa_s, MSG_DEBUG,
8594 "P2P: Freq=%d MHz no longer valid for GO",
8598 } else if (freqs[i].flags == 0) {
8599 /* Freq is not used by any other station interface */
8601 } else if (!p2p_supported_freq(wpa_s->global->p2p,
8603 /* Freq is not valid for P2P use cases */
8605 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8606 P2P_GO_FREQ_MOVE_SCM) {
8608 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8609 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
8610 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
8615 wpa_dbg(wpa_s, MSG_DEBUG,
8616 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
8617 invalid_freq, policy_move, flags);
8620 * The channel is valid, or we are going to have a policy move, so
8623 if (!invalid_freq || policy_move) {
8624 wpa_dbg(wpa_s, MSG_DEBUG,
8625 "P2P: Cancel a GO move from freq=%d MHz", freq);
8626 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
8628 if (wpas_p2p_in_progress(wpa_s)) {
8629 wpa_dbg(wpa_s, MSG_DEBUG,
8630 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
8631 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
8633 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
8634 wpas_p2p_reconsider_moving_go,
8640 if (!invalid_freq && (!policy_move || flags != 0)) {
8641 wpa_dbg(wpa_s, MSG_DEBUG,
8642 "P2P: Not initiating a GO frequency change");
8646 if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
8647 timeout = P2P_GO_FREQ_CHANGE_TIME;
8651 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
8653 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
8654 eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
8658 static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
8659 struct wpa_used_freq_data *freqs,
8661 enum wpas_p2p_channel_update_trig trig)
8663 struct wpa_supplicant *ifs;
8665 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
8669 * Travers all the radio interfaces, and for each GO interface, check
8670 * if there is a need to move the GO from the frequency it is using,
8671 * or in case the frequency is valid again, cancel the evacuation flow.
8673 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
8675 if (ifs->current_ssid == NULL ||
8676 ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
8680 * The GO was just started or completed channel switch, no need
8684 (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
8685 trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
8686 wpa_dbg(wpa_s, MSG_DEBUG,
8687 "P2P: GO move - schedule re-consideration");
8688 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
8689 wpas_p2p_reconsider_moving_go,
8694 wpas_p2p_consider_moving_one_go(ifs, freqs, num);
8699 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
8701 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8704 wpas_p2p_update_channel_list(wpa_s,
8705 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
8709 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
8711 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
8712 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
8713 "the management interface is being removed");
8714 wpas_p2p_deinit_global(wpa_s->global);
8719 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
8721 if (wpa_s->ap_iface->bss)
8722 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
8723 wpas_p2p_group_deinit(wpa_s);